Monkey IV won't run
 

I am trying to run Escape from Monkey Island from a copied CD. I can install it no problem, but when I run it, nothing happens. I get the small window with the options, but when I click on Start Monkey IV, the program runs the CD and HD for a while and then just quits. I've tried it on other computers and it works! I've tried to use the patch from this site, but it won't work (CRC failed) - maybe because I have the italian version (the patch says 'ALL', but...)
Any idea?