Help me, please

[Kruisbestuiving]

Okay so I have kind of an annoying problem. whenever I play TF2 for a while it starts lagging a little bit, then suddenly it shows my PC wallpaper but I still hear the in-game noise and when I look at the bar on the bottom of my screen it shows I'm still playing TF2. It really annoys the crap out of me and I don't know what to do about it. I tried validating and defragmenting my game cache but the problem is still there! Help me, please.

[girdurloins]

Maybe you should reinstall the game.

[DarkCrystalMethod]

Perhaps you accidently pressed alt-tab, or windowbutton, or windowbutton-tab.
Did it actually crash or did it just get minimized?

[Kruisbestuiving]

it actually crashed but the sounds kept going on

Postat inițial de DarkCrystalMethod:

Perhaps you accidently pressed alt-tab, or windowbutton, or windowbutton-tab.
Did it actually crash or did it just get minimized?

[Shark]

do you meet up with the minimum requirements?

[Kruisbestuiving]

of course I do

Postat inițial de SharkWithALaserBeam:

do you meet up with the minimum requirements?

[smash]

Happens to me sometimes, it's an issue with your drivers. Update them all, especially your gpu one.