Satellite Pro U400 Win 7: flashing projector connected to Dynadock U10

I have a number of Dynadocks U10 and Toshiba Satellite Pro U400 laptops.

They are used to allow our teachers to move from one room to the other without having to connect and disconnect several cables. We use a vga connection to a projector for the external monitor.
Everything worked pretty well until we put Win 7 on laptops.

Now, at random intervals, the external monitor will blink.
I tried the most up to date drivers and software found elsewhere in these forums.
If I plug the projector directly into the laptop, the flashing stops.

Can someone please help avoid losing me my mind completely.

Thank you.

> If I plug the projector directly into the laptop, the flashing stops.

I think it means that the VGA of Dynadock pilot must be upgraded to Win 7 compatible version.
There is nothing wrong in using a direct connection to the laptop, so I think there must be a problem with the driver Dynadock.

The latest Dynadock graphics card drivers can be found here:
http://www.DisplayLink.com/support/downloads.php

Tags: Toshiba

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