HP T200 zero client's monitor is on but blank

I install Windows multipoint server and one of the client uses HP T200 Zero client. I have a Lenovo LCD monitor and I can see lights and power on, but the screen is just blank.
I tried using different monitors, but it still is blank. I am not sure if there is something else I needed to do before installation or low power supply?

I changed the zero client (another HP T200) and the same result. Any idea?

Thank you.

that particular thin client has an optional power supply. are you using it?!? because this sounds like a lack of power issue on the thin clients part. Post back, take care!

Also it apparently requires a special multipoint server/desktop.

thin client: http://h10010.www1.hp.com/wwpc/us/en/sm/WF06a/12454-12454-321959-338927-5112717-5171156.html?dnr=1
desktop: http://h10010.www1.hp.com/wwpc/us/e...27-5112717-5096586-5096588-5125166.html?dnr=1

Thanks for your reply, I appreciate it!
I figured it out, I needed a dual-slot graphic card for t200.

Hi CalvinGreg

Can you elaborate a little on your server setup and spec for MPS. Currently I have the same issue with T200, I can add the stations fine in the MPS manager but get no display on the T200. The T200 are connected via ethernet and seperate monitor, the host server is a fuji rack server x2 CPU 32GB Ram, Internal Graphics and seperate Monitor. How are you connecting up the T200?

Many Thanks