DD stops directly after start

[wazzzup]

Hi, I'm running a trial version of 2.6a on windows 7 x64 with TT-Budget S2-4100.

I have tried it for a couple of days and it has been working fine until now. I intend to buy a license later.

Right now DD starts and after about a second it stops, no DD-window is visible but I can see in Task Manager that it actually is running a short time. I have cleared the Logs folder before trying to start it, all I get is an empty ds_mng.log.

What can I do to get it running again?

Update: A reinstallation of Windows 7 made it work.