sopc unsolved error

Hi

I installed quaruts 9.1 on my new computer the installation was fine but when I try to built a

nios core there was the next error

# 2010.05.07 16:10:26 (*) Running Generator Program for cpu_test

Error: Generator program

for module 'cpu_test' did NOT run successfully.

I have to say that the core works on other computer fine .

I tried everything I reinstalled JRE,check if there is variables problem ,reinstall quarus 9.1 and even install quarus 9.0 but the problem is still exsist and I cant create NIOS core.

if any one know what is the problem it will be very helpfull

the details about the computer

my os is WIN 7 home premium 64 bit

intel I7 720qm

4gb DDR3

yoni