LR11.0: HP Virtual User Generator (Not Responding).

Hi All, I am getting an isssue in Vugen as it is not being initialized as getting the message as "HP Virtual User Generator (Not Responding)". its open a blank screen.

while after forcefully stop Vugen on windows event log i am getting like "The program vugen.exe version 11.0.0.8859 stopped interacting with Windows". 

Version: LR11.0

OS: Windows7(32bit)

Thanks for you help in advanced.