WySE 8.3_012 using toggle bar to change between connection makes the screen all pixeled

Greetings,

We experience when using the wyse left toggle bar the screen get's all pixeled and need's to be closed and reconnected.

It happens when getting to the main connection menu. If i choose my already connected session on the process-bar the screen go's wild.

Somehow i get the feeling that it is the wyse firmare having the trouble. But not sure.

Any one have the same experience? Citrix is rather new for us.

We run WySE type 5010 model D10D with 8.3_012 image.

-- Adam