After a lucky coincidence now I'm able to play D2.
After throwing away D2 fot not smashing it away in frustration, I installed Kotor2, which was ever smooth anytime I tryed to play it.
Unexpectedly I encountered graphic issues (beside the little trick for widescreen) and I discovered that for AMD dual core you have to install the AMD Dual core Optimization.
Afterward I tried again (yes I'm a masochist) and now all goes perfect. The issue I was experiencing was the game freezing, all keep working but everything didn't move (ppl run in place etc.).
I never installed AMDDCO and never had to install it for other games, so I think this could be put in first aid or something similar. Maybe it could help someone having my similar issue.
Sorry if it has already been posted. Just wanted you to know...
