(n.) Condition where a game or application doesn't
take kindly to Alt+
Tabbing and always manages to fuck itself up somehow when you Alt+Tab. (This could mean graphical artifacting,
glitching, freezing, or just plain refusing to open up again, among other prognoses).
Fallout 3 has
Alt+Tab fever. Every time I tab in, the pots are
on the fritz, my pip boy goes black, and the world promptly ceases to exist!
Skyrim has a minor case of Alt+Tab fever, because you have to tab in twice to get it started again.
Any game released before 1999 can be safely assumed to have
Alt+Tab Fever. Good luck
tabbing back into that.