well it's been 6 days and my Mac was running OK every now & then it would make the same 3beeps or the minute it bootsup the screen would darken & tells me to hold down on the on/off button to restart & after awhile it would work like normal, today I'v decided to put the EYETV USB thing in again to watch TV, as soon as I've done that the screen darken & a window come up to restart, I immediatly unplug the EYETV and now as soon as I restart there is 1 of 3 things that happen (1)the 3 beeps (2)bootup & the screen darken & tell me to reboot (3)2 very dull noises and a loud noise,I think there is more to than just reseating those RAMs,do you think I should just take it to Mac Shop