I have been trying to debug a problem on a PC runnig W95 OSR2 with MMX300, 64MB RAM. I need to run a DOS app (windowed), and a mix of 16bit and 32bit windows apps at the same time, continually switching between the apps. Several times durring the day, the numeric keypad locks up (numlock light still on) and one of the 16bit apps does not respond to mouse clicks (except the min/max/exit buttons). All other functions are OK. Other PCs on the LAN doing the same thing do not experience this problem. I've check the PC, power management settings, memory utilization and found nothing unusual. I can not duplicate this when runnig the apps seperatly but this is not an option. Any sugestions on how to debug this?