I built a simple patch with only one each:

When I move the video window to the projector and enter full screen mode (my monitors aren't mirrored), I get flashing artifacts on my internal monitor, making the computer unusable.

- Max is the only app running, this is the only open patch.

Hi,
I built a simple patch with only one each:

Details:
- Mac OS 10.8.3,
- Max 6.1.3
- Macbook 17" with 2.3 Ghz and 8 GB RAM.
- Max is the only app running, this is the only open patch.
- tried two different projectors.

Flashing screen with Vizzie