I hope it fixed in 4.80.3 . Please mail me if still problem.

I have the exact same behaviour over here.

Hauppauge Nexus (TT1 in hard mode) NTSC, Canada
When I start it (tried Prog 4.79.4 & 4.80.3 with Intel P4 patch) I get no video. Then I go to «Device options» and click OK, then video goes on ...