Computer is Packard Bell PB 441A (PB1120+) with Phoenix bios A486 ver. 1.01E (Intel 486SX) running MSDOS 6.2/Windows 3.11 Hard drive is a Seagate ST 290A (1001tr 15h 34s 245mb) Doublespace was installed and working o.k. until I accessed CMOS to check settings - no changes were made to any settings, but now the BIOS sees the hard drive settings as invalid, and refuses to boot from it. I am able to boot from the A: drive only if the hard drive is disabled, and there does not appear to be any parameter for boot sequence preference in BIOS. Is there any way to recover from this situation?