Topic: digicheck 5.43 doesn't start with fireface 400 and widnows 7 64bit

hi, i have an a fireface 400 with the latest driver and the digicheck 5.43.
when i try to start digicheck the program is active and visible on the Windows processes (in task manager) but does not appear, on video,  a window  or any other.
i have just try to execute with administrator privileges, but nothing change.

i have jus try di remove and reinstall all the driver and programs but nothing change.