Okay, signal seems all right. Next question: which firmware AJa are you on? Do you have a blackburst signal? Which OSX version? Try to connect Monitor directly with Aja. It could be a sync problem because I don’t know whether PVW 2800, UVW 1800 have a buildt in TBC ? At the beginning I’ve had sync problems (Aja needed at that point a blackburst signal) but the result was sound/picture delays, no jumpy pictures. But the new firmware together with OSX 3.8 works great. (don’t install 3.9!) I didn’t install the brandnew control software of Aja, because I don’t need it. Try following setup: Use composite out Aja as a blackburst signal for one of your Betas (It works most times) Beta must be switched on ext. sync. Monitor should be fine on int. sync. Then check again. At the end you know at least whether it’s a sync problem or not.
Try step by step an you’ll find your problem and you’ll learn a lot about your system you work with.
Rainer