I recently purchased a GV-800-4 and am experiencing the same thing. The specs for the card state 120fps, which I suppose would mean that it records 30fps per channel anyway, but since I have set it to 720x480, it does not record at those frame rates (I assume).
I can verify that I am logging in as an administrator because that is the only user/account on the machine.
Anyone have any thoughts on this?
Thanks!