what image are u using? JaS was always f*ck for me, best was myzar, tubgirl was ok too.

Ok, you were right. In safe mode I could change the resolution. Thanks!
Mh, I don't want to download any image again ...
But in the Display-Configuration I can only change the resolution for both screens, so when I set it to 1680x1050, my 20" works, and my 19" doesn't. How can I set something like "extend desktop"?

Only in a few cases dual-monitor will work correctly.

Alright. Is there any chance to get it work, or should I let it?

I'm really sorry Epke. I'll hit the road, when this questions has end. ;-)

It still has do do with monitor problems, so we could use it in here. Leave it with one monitor yet, don't experiment with it, would only cause problem I think.

P.S.: 100st post!

Alright. Thanks! I'll shut down my additional monitor and try to ignore it ;-)

P.s.: Congratulations! I have to write 12 still ... ;-)