Adobe Digital Edition 4.0 instantly crashes

Hello,

I have encountered a problem while using Adobe Digital Edition 4.0. I was using the program and it worked pretty good, no problems at all. From one day to another the program doesn't start. No graphics, no borders, no error-/crash-report, nothing except for a process that starts in the taskmanager and closing itself a splitsecond later.

By using the Domain-User Account with administrative rights on my Laptop the Problem occurs, by using the local Administrator it doesn't. Using the local Administrator is no option for me though.

I am using the Windows 7 Pro 64-bit OS.

Please help.