What causes an erratic mouse in the shut down window?

[mauricevo]

If I choose Shut Down from the start menu, a window appears with shut down selected and then gradually the background of the screen goes dark. This part is normal. However, also during this time, the mouse becomes jumpy and uncontrollable.

I am using Windows Server 2003 standard edition (32-bit). And it's running on an Arima HDAMA board with dual 248 Opterons and 2 GB RAM using default BIOS settings.

I have tried this on two Dells both running W2K3 standard, and I don't see this behavior, so the question is whether it's Opteron/motherboard specific or it just shouldn't happen at all. I don't generally see this behavior anywhere else in this Windows, but it is easy to make it happen just by copying files using the 64-bit preview edition of W2K3 on this computer. In that case, all mouse control is eventually lost and the computer must be rebooted.

 

[pmf71]

Check for Viruses and/or Spy/malware. There was a thread on this last week and for that person, the problem was malware.

 

[mauricevo]

I can't seem to find that thread. Then again, my search doesn't find this thread.

Spysweeper finds lopdotcom in one of IIS help pages, which seems to me to be a false positive, and I don't think malware could this exact behavior.

My sense is something causing latency between interrupts..something hardwarish and that shows up in W2K3 32-bit when shutting down, and under 64-bit Windows in other places as well.