Friends comp keeps crashing. Error messages in the event viewer point to a dcom error. Also irql_not_less_or _equal also appears. This is infrequent and only started 17/8/03. No new software or hardware added. Blaster worm caught and killed. Xp then patched. Sp1a update added today amid crashes. Operating system Win XP pro.Athlon XP2400.Geforce 4. 512mb Ram.