No this isn't the problem everyone seems to have with not being able to work on one screen while flash plays on the other. My problem is that whenever I switch to full screen mode when using dual monitors the video goes in the middle of the two screens (but with only one half visible).
Any help would be greatly appreciated
I am running 32-bit LMDE with an Intel e7300 core 2 duo processor and an ATI radeon hd 6670 with relevant drivers.
Found out it isn't just flash, had a similar problem going full screen on the program Scratch