Hey,
I downloaded and used both these programs and they did not help. I go home (im at uni) soon and i will take my mac to the mac shop- hopefully they can find what is happening. I may simply need more RAM...
Thanks to everyone who helped i wish that the programs had worked..

P.S. A few of my friends have had MB's and MBP and out of the 5 ppl i know with one 3 have broke down on them within a year of purchase. I feel that my iMac has done way better then the MB and MBP...

Thanks for all your help
xo J