|Like I mentioned earlier, you should refrain from interacting with any UI element from any thread other than the one that actually owns the element. See here for more, specifically the "Worker threads and the GUI II: Don't touch the GUI" section.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Some people are making such thorough preparation for rainy days that they aren't enjoying today's sunshine." - William Feather