Motherboard - ASUSTek A8n-VM, rev.1.xx
Bios - American Megatrends 0403
Windows XP Home, SP3
This has worked fine for several years, but now hangs at the ASUS screen on every start, instead of proceeding with the full boot. Pressing <DEL> there brings up the BIOS screen, which hangs at "auto-detecting device #01. Several hard restarts later, the BIOS will roll past #01 to #03, then automatically brings up BIOS Setup Utility. Pressing <ESC> there brings up a box asking if I wish to "Discard configuration changes and exit now?" Pressing OK there initiates the normal boot process, and normal computer function. I installed a new motherboard battery, with no benefit.
Any suggestions?, please.