New Monitor, BSplayer sound but no video.

[Nocontact]

I just installed a new LCD monitor, Win XP Pro, and for some reason now none of my video files have picture, just sound.
I was watching something just before I switched monitors so I assume it had something to do with it but I can't understand what.
Could new monitor drivers have corrupted my codecs or something?

I'm using a Radeon 9600 on XP PRO

[adicoto]

Probably the best way to check it's to change rendering method from default to overlay mixer and then back to internal renderer (default). To do that, go to preferences (ctrl + p), select video and the tab named rendering,

[Nocontact]

Still nothing, sound plays great, no picture.
I tried reinstalling, still nothing.

[adicoto]

Can you also try to swich to VMR9 ?

Can you tell us wich filters are used to play the file ?

[Nocontact]

Wow, VMR 9 seemed to work. I appreciate that.
Is there any way you can explain what this change does and what would have changed?
Thanks so much.

[BSPeter]

FAQ on VMR9

[Nocontact]

Hey, thanks for that.
One more question, I'm trying to play some MKV files now and they're stuttering badly.
Will changing the overlay to something else restore their functionality?