Which event log - there is nothing in the Windows Event Viewer
1. Right-click My Computer.
2. Choose Properties.
3. Click the Advanced tab.
4. Click the Settings button next to Startup and Recovery.
5. Under the System Failure group, make sure the 3 checkboxes are enabled, and the 2 boxes below are set to Small memory dump (64KB) and %SYSTEMROOT%\Minidump
Next time you crash, can you examine the file C:\Minidump in Wordpad or Notepad and see what it says?