HELP!!! new iMac. screen shifts side to side and i can't use mouse when this happens.
i bought this imac back in january and have had nothing but problems since then with it. first my OS (lion 10.7.4) crashed or some **** where i got extremely slow and would give me the colored wheel of death so i take it to worst but where i bought it and they say its a corupt hard drive so its sent out. get it back, they say it whats the os system so they re-boot the os on to it. mean while i was having the same problem ive have from the beginning which was the screen would shake side to side when ever i would be doing something and the mouse locks up and i would have to wait for it to stop. this is VERY ANOYING!!! i took it to apple and they ran a series of stress tests on it and they couldnt even get it to produce it once while they had it. so now its STILL doing it! can anyone please help me. im ready to go to apple and demand a new computer or punch someone in the face...
iMac, Mac OS X (10.7.4)