wieldy.ppc.exe throws exception

The Windowsapp looks great, but i cannot start the mobile version:
the errormessage is far to large to read it fully on the mobile devices small screen but it starts with
reflection.targetinvocationexception -> system.NullReferenceException -> Wieldy.Core.FileSynchronizer..ctor()
... and a lot more

Version 0.2.6.609 (cab downloaded several times)
windows mobile 6.5
Device Acer S200
.net compact 3.5 installed