Xilinux Project Navigator 4.2.03i - Error Message

I have started using Xilinux Project Navigator for a Digital Lab. I am required to follow a tutorial and perform some steps on the program and print out waveforms.

I am able to successfully type in the VHDL code. I am able to see the waveform.

When I double click on "GENERATE EXPECTED SIMULATION REUSLTS" I get the following messages.

The last sentence is an error message. I can not go beyond this error and it is stopping me from being able to view the Test Bench Wave form that I am supposed to see.

Thank You for the help.

----------------------------------


ISE Auto-Make Log File
-----------------------

Updating: Generate Expected Simulation Results

Starting: 'exewrap -tapkeep -mode pipe -sen 50 -tcl -command C:/Xilinx/data/projnav/__simulateAnnoTestBench.tcl __antTOano.rsp'


Creating TCL Process
Running Automatic Do File: counter_tbw.ado
Starting: 'C:/Modeltech_xe_starter/win32xoem/vsim -c -do counter_tbw.ado'


Unable to checkout a license. Vsim is closing.
** Fatal: Invalid license environment. Application closing.
Tcl C:/Xilinx/data/projnav/__simulateAnnoTestBench.tcl detected a return code of '4' from program 'C:/Modeltech_xe_starter/win32xoem/vsim -c -do counter_tbw.ado'

VSim failed to simulate annotated testbench
Reason:
Done: failed with exit code: 0001.

You don't get a valid license for modelsim,use Licensing wizard to check you license.

GOOD LUCK

Thank you, do you know how to obtain a correct licence file and from where online should I look for it.

Thanks again.

/Read rules!!! License requesting is forbidden on the forum!!!
You get Warning. Topic locked. (klug)/