I just picked up an old Toby framebuffer (820-0198-A7) to use in my IIcx. The card seems to lose sync every few seconds - I'm trying to narrow down the cause.

I'm using an LCD monitor with a home-made Mac-PC video cable... I can use this cable on other video cards, and the monitor will do 640x480.

Unfortunately, I don't have a CRT (either Mac or PC) that I can try.

I just searched the forum, and found a few posts suggesting the Toby can't drive an LCD monitor... Can anyone confirm/deny?

Am I looking at a compatibility issue, or just a flaky video card?

Thanks