Question: Did you delete and then recreate the partition when you zapped the hard drive? Or just format it?
Hmm, I don't remember having to create a new partition when reinstalling XP after using Darik's Boot 'n' Nuke. Would destroying then recreating HDD's partitions be something to try?
Click on the Hardware tab under System Properties. (You have it open in the background where it shows system memory and processor.) Click on the Device Manager button. Are any of the devices highlighted with a yellow exclamation mark?
Well, most of the icons are too corrupted to see now.
However, I installed drivers for everything, and none of the sections are expanded as they do when containing a yellow exclamation mark. Looks like devices are fine, as far as that goes.
I've not seen this exact issue... but I have seen a PC give garbled IE output (like your browser screen here) and fail to run Windows Update properly.
My solution has been to update the MoBo drivers for everything, download the administrative installer for sp2, uninstall whatever service pack level the PC has, and reinstall sp2. Usually works. But, I've never been told I have 0 RAM.
Drivers and BIOS have been updated. Same problems have remained through SP 1, 2, etc. Tried uninstalling and redoing, no luck.
Last night, I ran Prime95, which is very sensitive to CPU/Mobo/Memory errors. I immediately got an "ERROR: ILLEGAL SUM OUT" message. Memory has been tested over night with no problems, leading me to suspect CPU, MoBo, or one or both of these not getting enough juice, etc. from the power supply. *sigh* I hate computers...