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It isn't clear to me exactly which model(s) Mike is talking about having problems with. The problems with A/C attached have been with the TP series since at least the 750 family. I personally gave up on Hibernation when I upgraded my 750 RAM to 20Meg and felt I didn't have enough disk space to handle the hibernation file and also lacked the patience to deal with the problems hibernation had. I have never missed it. With the 755CE, I found that the suspend on A/C problems continued, until I installed SYTPE140 BIOS. Of course, to be fair, around that time, I also installed the Mwave 2.0 stuff, which made the Mwave modem functions work, which meant that I could yank my XJ2144 PCMCIA modem. Way back in the back of my mind, I have this feeling that whenever I had no PCMCIA cards inserted, that suspend on A/C worked. So, maybe it isn't a fix in the BIOS, but rather the fact that I don't currently need a PCMCIA card. Before this, I had resigned myself to the fact that I would have to unplug before suspending, rather than unplug after suspending. No big deal. Ron.