You have a user who complains about random crashes alot and there is no explanation as to a cause. Try checking the system time on the network server and the user's computer. If there is a big difference (more than
40seconds) you may have found your problem.Checking time difference between two XP systems or an XP system and Linux with an NTP server running:
w32tm /stripchart /computer:target /samples:n/dataonly
For target substitute the IP address of the computer on the network you want to check differences with.
For n put in 3 or 5.