1. Click Start, point to Settings, and then click Control Panel (Start>Control Panel in Vista).
2. Double-click System.
3. Click (Advanced system settings link in Vista, then --->)the Advanced tab, and then click Settings under Startup and Recovery.
4. In the Write debugging information list, click Small memory dump (64k).
From now on, next time, the error happens, it'll create .dmp file, so we'll have to wait until the crash happens again.