diff --git a/sys/apps/Files.lua b/sys/apps/Files.lua
index 65c806d..1529c6d 100644
--- a/sys/apps/Files.lua
+++ b/sys/apps/Files.lua
@@ -177,7 +177,6 @@ local Browser = UI.Page {
 				formLabel = 'Program', formKey = 'value',
 				shadowText = 'program',
 				required = true,
-				limit = 128,
 			},
 			add = UI.Button {
 				x = -11, y = 1,
diff --git a/sys/apps/Lua.lua b/sys/apps/Lua.lua
index 8371d06..2bcd8e5 100644
--- a/sys/apps/Lua.lua
+++ b/sys/apps/Lua.lua
@@ -29,7 +29,6 @@ local page = UI.Page {
 	prompt = UI.TextEntry {
 		y = 2,
 		shadowText = 'enter command',
-		limit = 1024,
 		accelerators = {
 			enter               = 'command_enter',
 			up                  = 'history_back',
diff --git a/sys/apps/system/aliases.lua b/sys/apps/system/aliases.lua
index ede9349..20e1356 100644
--- a/sys/apps/system/aliases.lua
+++ b/sys/apps/system/aliases.lua
@@ -13,7 +13,6 @@ local aliasTab = UI.Tab {
 	},
 	path = UI.TextEntry {
 		y = 3, x = 2, ex = -2,
-		limit = 256,
 		shadowText = 'Program path',
 		accelerators = {
 			enter = 'new_alias',
diff --git a/sys/apps/system/launcher.lua b/sys/apps/system/launcher.lua
index c3f8588..b714d9a 100644
--- a/sys/apps/system/launcher.lua
+++ b/sys/apps/system/launcher.lua
@@ -26,7 +26,6 @@ local tab = UI.Tab {
 	},
 	custom = UI.TextEntry {
 		x = 13, ex = -3, y = 4,
-		limit = 128,
 		shadowText = 'File name',
 	},
 	button = UI.Button {
diff --git a/sys/apps/system/path.lua b/sys/apps/system/path.lua
index 9550cb4..bef226f 100644
--- a/sys/apps/system/path.lua
+++ b/sys/apps/system/path.lua
@@ -11,7 +11,6 @@ local tab = UI.Tab {
 	},
 	entry = UI.TextEntry {
 		x = 3, y = 3, ex = -3,
-		limit = 256,
 		shadowText = 'enter new path',
 		accelerators = {
 			enter = 'update_path',
diff --git a/sys/apps/system/requires.lua b/sys/apps/system/requires.lua
index 54d78d8..00da01b 100644
--- a/sys/apps/system/requires.lua
+++ b/sys/apps/system/requires.lua
@@ -8,7 +8,6 @@ local tab = UI.Tab {
 	tabClose = true,
 	entry = UI.TextEntry {
 		x = 2, y = 2, ex = -2,
-		limit = 256,
 		shadowText = 'Enter new require path',
 		accelerators = {
 			enter = 'update_path',
diff --git a/sys/apps/system/settings.lua b/sys/apps/system/settings.lua
index 6676910..cb12557 100644
--- a/sys/apps/system/settings.lua
+++ b/sys/apps/system/settings.lua
@@ -27,7 +27,6 @@ return settings and UI.Tab {
 		form = UI.Form {
 			y = 2,
 			value = UI.TextEntry {
-				limit = 256,
 				formIndex = 1,
 				formLabel = 'Value',
 				formKey = 'value',
diff --git a/sys/kernel.lua b/sys/kernel.lua
index b7ea08b..51cba75 100644
--- a/sys/kernel.lua
+++ b/sys/kernel.lua
@@ -114,7 +114,7 @@ function Routine:resume(event, ...)
 		if coroutine.status(self.co) == 'dead' then
 			Array.removeByValue(kernel.routines, self)
 			if self.onDestroy then
-				self.onDestroy(self)
+				pcall(self.onDestroy, self)
 			end
 			if #kernel.routines > 0 then
 				switch(kernel.routines[1])
diff --git a/sys/modules/opus/ui/components/FileSelect.lua b/sys/modules/opus/ui/components/FileSelect.lua
index dd8747e..7dbec8b 100644
--- a/sys/modules/opus/ui/components/FileSelect.lua
+++ b/sys/modules/opus/ui/components/FileSelect.lua
@@ -50,7 +50,6 @@ function UI.FileSelect:postInit()
 	}
 	self.path = UI.TextEntry {
 		x = 2, y = -2, ex = -11,
-		limit = 256,
 		accelerators = {
 			enter = 'path_enter',
 		}
diff --git a/sys/modules/opus/ui/components/Slider.lua b/sys/modules/opus/ui/components/Slider.lua
index 620877e..4210773 100644
--- a/sys/modules/opus/ui/components/Slider.lua
+++ b/sys/modules/opus/ui/components/Slider.lua
@@ -13,17 +13,21 @@ UI.Slider.defaults = {
 	sliderFocusColor = 'lightBlue',
 	leftBorder = UI.extChars and '\141' or '\124',
 	rightBorder = UI.extChars and '\142' or '\124',
+	labelWidth = 0,
 	value = 0,
 	min = 0,
 	max = 100,
 	event = 'slider_update',
+	transform = function(v) return Util.round(v, 2) end,
 	accelerators = {
 		right = 'slide_right',
 		left = 'slide_left',
 	}
 }
 function UI.Slider:setValue(value)
-	self.value = tonumber(value) or self.min
+	self.value = self.transform(tonumber(value) or self.min)
+	self.value = Util.clamp(self.value, self.min, self.max)
+	self:draw()
 end
 
 function UI.Slider:reset() -- form support
@@ -35,56 +39,69 @@ function UI.Slider:focus()
 	self:draw()
 end
 
+function UI.Slider:getSliderWidth()
+	local labelWidth = self.labelWidth > 0 and self.labelWidth + 1
+	return self.width - (labelWidth or 0)
+end
+
 function UI.Slider:draw()
+	local labelWidth = self.labelWidth > 0 and self.labelWidth + 1
+	local width = self.width - (labelWidth or 0)
 	local range = self.max - self.min
 	local perc = (self.value - self.min) / range
-	local progress = Util.clamp(1 + self.width * perc, 1, self.width)
+	local progress = Util.clamp(1 + width * perc, 1, width)
 
-	local bar = { }
-	for i = 1, self.width do
-		local filler =
-			i == 1 and self.leftBorder or
-			i == self.width and self.rightBorder or
-			self.barChar
-
-		table.insert(bar, filler)
-	end
-	self:write(1, 1, table.concat(bar), nil, self.barColor)
+	local bar = self.leftBorder .. string.rep(self.barChar, width - 2) .. self.rightBorder
+	self:write(1, 1, bar, nil, self.barColor)
 	self:write(progress, 1, self.sliderChar, nil, self.focused and self.sliderFocusColor or self.sliderColor)
+	if labelWidth then
+		self:write(self.width - labelWidth + 2, 1, Util.widthify(tostring(self.value), self.labelWidth))
+	end
 end
 
 function UI.Slider:eventHandler(event)
 	if event.type == "mouse_down" or event.type == "mouse_drag" then
-
 		local pos = event.x - 1
 		if event.type == 'mouse_down' then
 			self.anchor = event.x - 1
 		else
 			pos = self.anchor + event.dx
 		end
-
 		local range = self.max - self.min
-		local i = pos / (self.width - 1)
-		self.value = self.min + (i * range)
+		local i = pos / (self:getSliderWidth() - 1)
+		self:setValue(self.min + (i * range))
 		self:emit({ type = self.event, value = self.value, element = self })
-		self:draw()
+		return true
 
 	elseif event.type == 'slide_left' or event.type == 'slide_right' then
 		local range = self.max - self.min
-		local step = range / self.width
+		local step = range / (self:getSliderWidth() - 1)
 		if event.type == 'slide_left' then
-			self.value = Util.clamp(self.value - step, self.min, self.max)
+			self:setValue(self.value - step)
 		else
-			self.value = Util.clamp(self.value + step, self.min, self.max)
+			self:setValue(self.value + step)
 		end
 		self:emit({ type = self.event, value = self.value, element = self })
-		self:draw()
+		return true
 	end
 end
 
 function UI.Slider.example()
-	return UI.Slider {
-		y = 2, x = 2, ex = -2,
-		min = 0, max = 1,
+	return UI.Window {
+		UI.Slider {
+			y = 2, x = 2, ex = -2,
+			min = 0, max = 1,
+		},
+		UI.Slider {
+			y = 4, x = 2, ex = -2,
+			min = -1, max = 1,
+			labelWidth = 5,
+		},
+		UI.Slider {
+			y = 6, x = 2, ex = -2,
+			min = 0, max = 100,
+			labelWidth = 3,
+			transform = math.floor,
+		},
 	}
 end