cant start ur after update to v4.1b
 

i'm using ur pro in a vista x64 environment.
after updating to v4.1b i'm not able to start the program.
an error message appears: "Error while unpacking program, code 2. Please report to author"

any suggestions?

thx 4 your suggestions.

paradoxically ur is running like a charm after several restarts. i didn't make any change to my system.
i restartet because ultravncviewer hung several times.

so i don't know what caused ur not to work at first.