Screen Flicker
If you are experiencing screen flicker at seemingly random intervals while playing the came, the following steps may be of use, as prescribed by Castellon:
1) Rename the AVI folder to AVI_back
2) Set the color depth to 16BIT
3) If you're using the auto-hide feature of the task bar, disable it.
4) If you have an Explorer window searching for a file or displaying search results, close it.
5) Turn off everything in the background like E-mail/ICQ/Messenger, Virus protection and everything in the system tray beside the clock.
6) Update your Windows, update your Video card drivers and audio card drivers. Then repeat steps 1-3.
98% of flicker problems are caused by other programs running in the background.
Also, alt+tabbing tends to increase screen flicker.