Thank you Escalibur. I set the path (on my computer is D:\Programmi\Intel\MKL\ia32\bin; I downloaded Intel MKL 5.1 for evaluation) but CATIA doesn't notice it. Should I reinsatll CATIA?
Make sure that you have installed the Intel MKL 5.1b (the 'b' is important), I think you installed the Intel MKL 5.1e (which only be supported by CATIA V5R9)
Cheers
Like I said, do not try to use the MKL 5.2E with CATIA V5R8 or CATIA V5R7 because IT WONT WORK !! I know Intel remove the MKL 5.2B from their website but if you ask IBM or INTEL, they should provide it to you.