Windows swapping between Aero and Basic

[Narj]

I have no clue what is going on but my desktop seems to be switching between Aero and Basic modes by itself randomly.

I have onboard graphics disabled and I'm thinking this might explain the odd infrequent black screen glitch in games.

Has anyone else come across this in Windows 7? I'm thinking it's the recent driver update to 9.18.13.1090.

 

[Narj]

Yes, I'm using AB... I'll try disabling it/updating (ooops I have an old version anyhow!).

Cheers for the suggestions.