If reinstalling the OS (with the Toshiba disks) didn't help, then it's a hardware issue.
Try running a bootable memory diagnostic (
http://usasma.vox.com/library/post/b...agnostics.html )
If that passes, then try the bootable hard drive diagnostic (
http://usasma.vox.com/library/post/b...agnostics.html )
__________________
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