Text consoles stay black

After changing my xorg.conf to make use of Nvidia's TwinView feature with
my TV, which works otherwise fine, tty1-6 stay black (Well, OK, there are
some green little boxes on tty1 ^^). This is what I inserting in the
Device section of my xorg.conf:

Option "TwinView" "true"
Option "TwinViewOrientation" "Clone"
Option "TVOutFormat" "COMPOSITE"
Option "TVStandard" "PAL-B"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "MetaModes"
"1280x1024,1024x768;1024x768,1024x768;800x600,800x600;640x480,640x480"

Strangely, when I comment it out again, I have to do a complete reboot to
see the consoles, restarting the X server is not enough. Any idea what
causes these problems and how I can fix it?

Regards,
ubi
.