diff --git a/sys/apis/gps.lua b/sys/apis/gps.lua
index c7f24e7..1b3e223 100644
--- a/sys/apis/gps.lua
+++ b/sys/apis/gps.lua
@@ -2,7 +2,6 @@ local GPS = { }
 
 local device = _G.device
 local gps    = _G.gps
-local turtle = _G.turtle
 
 function GPS.locate(timeout, debug)
 	local pt = { }
@@ -34,60 +33,6 @@ function GPS.getPoint(timeout, debug)
 	return pt
 end
 
-function GPS.getHeading(timeout, destructive)
-	if not turtle then
-		return
-	end
-
-	local apt = GPS.locate(timeout)
-	if not apt then
-		return false, 'GPS not available'
-	end
-
-	local heading = turtle.point.heading
-
-	while true do
-		if not turtle.inspect() and turtle.forward() then
-			break
-		end
-		turtle.turnRight()
-		if turtle.getHeading() == heading then
-			if destructive then
-				turtle.dig()
-				if turtle.forward() then
-					break
-				end
-			end
-			return false, 'GPS.getPoint: Unable to move forward'
-		end
-	end
-
-	local bpt = GPS.locate()
-	if not bpt then
-		return false, 'GPS not available'
-	end
-
-	if apt.x < bpt.x then
-		return 0
-	elseif apt.z < bpt.z then
-		return 1
-	elseif apt.x > bpt.x then
-		return 2
-	end
-	return 3
-end
-
-function GPS.getPointAndHeading(timeout, destructive)
-	local heading = GPS.getHeading(timeout, destructive)
-	if heading then
-		local pt = GPS.getPoint()
-		if pt then
-			pt.heading = heading
-		end
-		return pt
-	end
-end
-
 -- from stock gps API
 local function trilaterate(A, B, C)
 	local a2b = B.position - A.position
diff --git a/sys/apis/ui/components/Checkbox.lua b/sys/apis/ui/components/Checkbox.lua
index a780c42..9f0b272 100644
--- a/sys/apis/ui/components/Checkbox.lua
+++ b/sys/apis/ui/components/Checkbox.lua
@@ -45,6 +45,10 @@ function UI.Checkbox:focus()
 	self:draw()
 end
 
+function UI.Checkbox:setValue(v)
+	self.value = v
+end
+
 function UI.Checkbox:reset()
 	self.value = false
 end
diff --git a/sys/apps/Network.lua b/sys/apps/Network.lua
index f209aa1..517c98f 100644
--- a/sys/apps/Network.lua
+++ b/sys/apps/Network.lua
@@ -23,6 +23,8 @@ local config = Config.load('network', { })
 
 if UI.term.width >= 30 then
 	table.insert(gridColumns, { heading = 'Fuel',   key = 'fuel', width = 5 })
+end
+if UI.term.width >= 40 then
 	table.insert(gridColumns, { heading = 'Uptime', key = 'uptime' })
 end
 
diff --git a/sys/extensions/6.tl3.lua b/sys/extensions/6.tl3.lua
index abba19f..3a32a08 100644
--- a/sys/extensions/6.tl3.lua
+++ b/sys/extensions/6.tl3.lua
@@ -3,7 +3,6 @@ if not _G.turtle then
 end
 
 local Pathing      = require('pathfind')
-local GPS          = require('gps')
 local Point        = require('point')
 local synchronized = require('sync').sync
 local Util         = require('util')
@@ -1241,15 +1240,6 @@ function turtle.inspectDownAt(pt)        return _actionDownAt(actionsAt.inspect,
 function turtle.inspectForwardAt(pt)     return _actionForwardAt(actionsAt.inspect, pt) end
 function turtle.inspectUpAt(pt)          return _actionUpAt(actionsAt.inspect, pt) end
 
--- [[ GPS ]] --
-function turtle.enableGPS(timeout, destructive)
-	local pt = GPS.getPointAndHeading(timeout, destructive)
-	if pt then
-		turtle.setPoint(pt, true)
-		return turtle.point
-	end
-end
-
 -- deprecate
 function turtle.addFeatures(...)
 	for _,feature in pairs({ ... }) do