You may need to "clean up" your computer. Run virus scan, defrag, system clean up, etc. That will free up space, get rid of temporary files etc. Another thing is check how many programs you have running in the back ground. In the lower right hand corner, by the clock, are all those icons. the more icons, the more things are running in the background and can slow things up. Also, how many icons do you have on your desktop? Again, the more icons, the slower things go. Get rid of any shortcuts you don't need, or programs you dont use. Just delete the icon, it won't delete the program. Hopefully this'll help.

I'll keep my fingers crossed on the kitty!