What is your graphic card ?
Is it an integrated S3 graphic card ?
If yes, I'm afraid there's nothing to fix that, except buy a real graphic card...
If you don't know what is your graphic card, or you have another one, could you copy/paste the "System.log" file (which is in your Tennis Elbow directory), here ?
(just use the Notepad to open this file)
== Mana Games ==
>> I don't answer Private Message, except if it's really a _Private_ topic <<