Not always, but frequently, Eufloria will 'blue screen' windows if I toggle full screen mode. I can't figure out why this is happening, but I'm almost positive it's Eufloria and not my computer. All other fullscreen applications and games toggle between fullscreen and windowed without any problem.
I'm running v2.04 with the following specs:
Windows 7 Professional x64
Intel Core i7 920 @ 2.60GHz
Radeon HD 5770