my computer runs NFS Underground 2 laggy,but it does not run with 3d analyze.
I click on 'run' but nothing happens,even I don't select any options.
age of empires 3 runs sucessfully with 3d analyze,but NFSU 2 doesn't.
can someone tell me the solution to run NFSU 2 with 3d analyze?

my OS is windows vista