No connection of Colibri VF50 in Windows Mobile Device Center when its connected

There is no connection established when the Colibri connected to window 7 PC.
Please help.

What carrier board do you use? What version of OS image do you have? Please always give us basic information so we can help you.

Iris carrier board and OS image version is 1.3 BETA, BUILD 4 (CE 6.0)

can you try another PC? And another cable. We do not see this issue.