OK, so I was advised to take out the RAM from my 24" iMac, get the dust out of there, and then put it back in, based on the 3 beeps I sometimes get during startup (which mean that "it has no good banks"). I am pretty sure it is the same thing that is causing the kernel panics (please say if you need to look at the report), but I am not sure. I've tried the RAM thing twice, and it doesn't seem to work. Is next step to replace the RAM? The computer is only a little more than a year old, so the warranty is still valid. Do I need to call Apple, or the store where I bought the computer (we don't have an Apple store here). Thanks in advance.