I've been looking all over the internet, but cannot find help with my problem. I'm not sure I'm posting in the right forum, either. I don't KNOW if my problem is hardware or software related... I suspect hardware...

I have a Toshiba Satellite Pro 4200 series running windows XP nad it seems to crash after sitting idle for a period of time. The hard drive starts to read really slowly (making a repeditive "tick tick tick" noise) and the system becomes incredibly slow.
After a while it freezes completely. If left for much longer, a blue screen of death appears with something like "KERNEL_STACK_ERROR" or "KERNEL_STACK_INPAGE_ERROR" (it changes) and it says "Beginning dump of physical memory". Then, after a while, the screen GOES to black and I get a single message: "Please insert system disk to continue"
(By the way, I tried INSERTING a boot disk at this point, but it didn't recognize it)
Once the computer actually restarted and told me "Windows has recovered from a serious error", but as I was not connected to the internet, i COULD not send the REPORT to microsoft. However I do have the "manifest.txt" and "sysdata.xml" which I believe are related to logging this error, as well some ".dmp" files (which I assume are the "dump of physical memory" files) and I can send them if you want more info.

It's not just while it's idle, either. When it started, I tried a system restore, but when i tried to create a restore point (in case i didn't like the restore) it started reading slowly (with the "click click click" noise).
And it happened today halfway through trying to install Borland c++ builder 6.

I have a theory that the hard drive may have some badly place bad sectors, but when I tried to use the chkdsk utility to find them, it just said "Checking for errors" and then finished without actually doing anything. I know from past experience that these scans take forever.

I hope someone can figure out what it wrong and help me to fix it...
If you need more info, just ask.

Thanks.I had the same problem with my toshiba.  Had to send it in and mine was a powersupply problem.  It dont dump physical memory but it still clicks and im wondering about that also.  I seem to have an overheating problem also.