This morning I upgraded from bios A06 on my inspiron 1100 to A26, problem is that now when i boot up it tells me there is new hardware found although I haven't added anything to the PC.  Ive tried deleteing the new hardware, and it keeps coming back as unknown hardware.  Someone plese help, I just spent over an hour with dell tech support, and they've tried everything they say they know, their last suggestion, was to re-install windows.   Thanks, but no

Any suggestions?