Laptop/CDU display

[Jackpilot]

Hi all wizards
Trying to use my IBM Thinkpad for the CDU
Display configured for 2 screens active OK
When I plug a second monitor all is OK, 2 monitors active and going
When I plug the CDU to what looks like a TV out/SVideo plug at the back of the laptop I get
no image on the CDU screen, (CDU is active and the keys work if I open the CDU soft on the laptop screen.)
So I guess USB communication is OK but I cant have the display signal go to the CDU or in other words activate the TVout/s video plug.
(The cdu works perfectly on the other computers)

XP on all computers

Anything I'm missing.

[ANDYSMITH]

Hi, are you trying to use all three at the same time?
On mine I can only use the VGA out OR the S-video out but not both at the same time.

Andy

[Jackpilot]

No, I just checked with a second monitor that the vid card was OK.
I am back with the default monitor and my S/vid that I cant activate.
just two!!

[Jackpilot]

I Found this on the Net and I did not try it yet but I am posting it in case someone needs the info.
http://www.haverford.edu/audiovisual/techdocs/laptopchart.html