Perhaps a heat issue. Check your cpu fan and heat sink.

Mike Barnes wrote:
>
> This problem was listed prior to the newsgroup housekeeping. After a few
> minutes or maybe a couple hours my keyboard and mouse lockup and I have to
> reboot. I have done all that was suggested turned off power management etc.
> Both mouse and keyboard have PS2 connections. Maybe there is a software
> conflict. I just finished runing all the Norton fix it routines.
> Mike