Wells Gardner D9500 Question

[leapinlew]

According to Wells Gardner, the D9500 can do 1024x768 at 70MHZ, but when I try to change the resolution to 1024x768 at 70MHZ the screen becomes garbled and it displays "OVER RANGE". Here is the spec sheet from Wells Gardner: http://www.wellsgardner.com/pdf/Spec/D9500.pdf

Am I doing something wrong?

[Ummon]

Check your refresh. I notice when I install drivers for a new card, the default after restart is 75hz, which my 29" monitor won't do at XGA. Yours may not either.