Screen colors problem

I repaired my power button that was sunken in, and now it works perfectly. However, my screen does not work perfectly anymore. It's all inverted in colors and does some odd things when it's running. The touch aspect of the screen works fine.
http://tinypic.com/r/9b9jc4/6
http://tinypic.com/r/kedh6a/6
http://tinypic.com/r/6okkt3/6
I took the phone apart again and checked all connections, and everything looks fine. What the heck did I di to it?