Ok so ome other questions, is your desktop cluttered? Have you done all of the latest software updates other than that? Do you use time machine? Do you have it linked to an external western digital hard drive? (if so ill tell you why i asked that later). Are you running the 64bit or 32bit kernel? What versions of all software are you using?
Certified Apple Product Proffessional, 2010
Degree; TV Production
iMac 27" intel i7 2.93GHz, 12GB RAM, ATI HD5750 [1GB GDDR5], 2TB Int. SATA with 2TB External HDD; (FW800).