Problem connecting more than two USB monitors

[Gremlin_77]

Hi,

perhaps someone can help me with the following problem.

I have three USB monitors (Lilliput 80) I want to connect to one PC. Two monitors together work together in every combination. But when I connect a third one, DisplayLink tries to recognize it (Screen goes black and returns again and again) and none of the USBdisplays work.

'Cause every combination of two monitors work tells me, that this is not an hardware ID problem. Also tried all combinations of used USB ports, with and without powered USB hubs.

Windows 7 Aero is active.

Can anyone help me with this?

[Gremlin_77]

Okay, tried the three monitors on a second PC and there it works.

on the non working PC installed all windows updates and newest catalyst driver. no success.....

Any advice?

[Gremlin_77]

found out myself last night.

Three monitors and a CrossFire Connection don't work together. Turned of CrossFire of the two graphic adapters and it works now:D