error to every NIOS II project

Hi,

i have the DE2 board and i try to run on this many programs and demonstrations from system CD, some programs run, but programs using the NIOS II at the building process gives erros...

NIOSII IDE:

6 [main] sh 2200 fork: child 3428 - died waiting for longjmp before initialization, errno 11

/bin/sh: fork: Resource temporarily unavailable

5 [main] sh 876 fork: child 1276 - died waiting for longjmp before initialization, errno 11

/bin/sh: fork: Resource temporarily unavailable

C:/altera/91/nios2eds/components/altera_hal/build/app_rules.mk:153: /components/altera_hal/build/gnu_rules.mk: No such file or directory

C:/altera/91/nios2eds/components/altera_hal/build/app_rules.mk:157: /components/altera_hal/build/gtf_rules.mk: No such file or directory

make: *** No rule to make target `/components/altera_hal/build/gtf_rules.mk'. Stop.

i try with many diferent versions.

i try the 'hello word' project by Altera and many other small programs.

i read similar threads but it's not effective.

i waiting someone know... the solution or to give me tips

thanks anyway.