NIOS2 and USB Software Guard

Is there someone out there, who uses NIOS2 together with an Altera USB Software Guard (Dongle)?

I have switched from parallelport to USB Guard a few weeks ago, and since this point of time the

building script of SOPC builder (at the system generation tab) doesn't find a valid license. At the

component view of the SOPC builder (system components tab) the cpu is viewed with full license

and the license setup at quartus also shows a valid license.

Is this a problem with the USB guard? - if yes - is there a patch ?

Do i have to reinstall NIOS2, Quartus or even the whole system?

PS: I am using Quartus 5.0 with service pack 1.04 and NIOS2 Version 5.0 Build: 73c