help my macbook pro plz

for about 2 weeks now my macbook pro mid 2009(2.53 GHz 4 GB RAM, 10.5) has been lagging really bad and getting random spinning color wheels when doing nothing more then typing this.... i have nothing else running and istat says that i have over 2 GB in unused ram.

I reinstalled osx this morning after getting fed up and it did nothing but make it worse... when i called apple care they had me restart the mac while holding command option "P" and "R". she told me it should reset the RAM and fix the problem.....it didnt.

just wondering if anyone has come across this problem and if anyone has a solution. if not then does anyone know how long i would be without my mac if i send it in. thank you

When you reinstalled OS X, did you erase the disk first, and did you test it before restoring from your backup?

6string said:

When you reinstalled OS X, did you erase the disk first, and did you test it before restoring from your backup?

Click to expand...

i did erase the disk and i didnt even restore it. after it booted up and i saw there was still something wrong i didnt bother to restore.

Since it is happening after a clean install using only the apple software and having nothing else on the system, and it is still under warranty, I would take it to apple genius bar.
You could go through these steps, and it may bring it back to good before you go making the journey. http://www.mac-forums.com/forums/os-x-operating-system/93819-basic-os-x-mac-troubleshooting.html