Happens on both desktop & laptop but with different artifacts...
If I increase the Composition Size to anything greater than 640x480, the output (whether fullscreen or windowed) is actually unusable.
On the desktop machine it shows noise.
On the laptop it looks more like strobing black & white vertical bars (like a testcard).
Neither shows a usable picture.
I'd really like to be able to use 800x600 as that's the native res of my 'going out' projector and so the res that I'm re-encoding all my clips for (as DXV).
Is this a bug or a feature?
Anyone using HD resolutions without problem?..