Display Link Merlin-DVI USB Display

[Martin Pratt]

Hi all, I am having trouble using a Display Link Merlin-DVI USB Display Adapter. Can anyone assist?

I have been using it for the last year or two on WinXP with no problems. Recently we have been upgraded here to Win7, and since then I cannot get the adapter to run properly.
It has installed ok, but every few minutes the display goes black, until I run the mouse across it, then it comes back in blocks. If I click in the black display it usually comes back all at once. This only lasts a minute or so until it goes off again. It now spends more time off than on!

I have two monitors connected to the NVidia card and a third using the adapter. All running at 1280 x 1024

Merlin driver version: 6.3.38103.0 – 10/05/2012

Graphics: NVidia GeForce GT 620 – 8.17.13.142 - 15/05/2012

PC: Dell Vostro 470, Win7 Professional SP1, 64bit

Intel® USB 3.0 eXtensible Host Controller: 1.05.235 - 21/05/2012

Any help would be great,

Thanks in advance

Martin