Shapeshifter slowing down computer

I recently uninstalled Shapeshifter on my computer (Macbook Pro 2.2 ghz, 2 gb ram) running Tiger. However, now my computer has been running slower, especially when minimizing and maximizing windows, as the motion becomes jagged. I know that it Shapeshifter is the issue because as soon as I reinstall it, the minimization and maximization of windows speeds up again. How can I fix this?

Thanks for your help,
Jason

 

Also, I restored my the theme to the default before I uninstalled it. I was thinking of upgrading to Leopard soon, would this help fix anything?

 

Thanks for the reply. My computer is slow after having uninstalled shapeshifter and application enhancer. I even cleared many of the files that were not uninstalled properly; however my computer is still running slowly. I have emailed unsanity, but they have not gotten back to me. Is this something that someone at the Apple store could help me fix? Thanks.

 

I figured out that the issue goes away after I restart the dock (by typing "killall Dock in Terminal). I figure this means that there is a program that is opening upon start up that is slowing my computer down. I went to Accounts Login Items, but I can't seem to find anything that could be slowing my computer down. Are there other places where startup items are located? Thanks for your time.