The problem is the following:
I can successfully install and execute badaboom but it can't finish any conversions or almost (I manage to convert just very very short videos).

The error is "internal badaboom error" (and it suggests me to activate deinterlacing; nothing changes btw) together with Windows error "NVIDIA drivers stopped working" (never seen except for when using badaboom).

It usually happens randomly between 20 and 50% of a 300mb video.

The card is not overclocked, neither the rest.

This is my HW conf.:
Puni's DAILY: Asus A8N32-SLI + Toledo 939 4200X2 + EVGA 8800GTX + 4GB of DDR1; Win7 X64.

Tried several drivers. Same result.
Tried also to uninstall\install video codecs... nothing changes.

I am now converting videos with Videora free converter and it never failed.