Laptops :: Shutdown issues on HP Omnibook 800 CT
I've had a similar problem--mine was hardware-based (I had re-installed Windows to determine that). The mouse responded fine to the horizontal axis, but not the vertical. I'd try pulling the HP mouse out of its socket gently (you can do this and re-insert it with no harm), remove the battery, and use that little straw that comes with a compressed air duster can to try to blow out anything that may be messing up the mechanism. Whatever you do, don't blow WD-40 in there...:D Failing that, do what I did: find a 9-pin serial mouse (or google and buy a cheap one off the web) to plug in back, at which point, when you run xsetup.sh, bypass both "USB Mouse?" and "IBM PS/2 Mouse?" and you'll see the serial mouse menu. "COM1" ought to do it at that point.
Hmmm. The mouse worked fine with WinME a few minutes before DSL got its chance, so I don't think it's an hardware-based problem. I will try the COM-option in xsetup to get the build in mouse to work. Or my (very) old serial mouse will get back to business as well ;-)
original here.