So i recently got back xp 32bit, and i found impossibile to run Serious Sam HD: Fatal Error cannot set display mode.
My resolution is 1440x900, and i specify that SSHD worked with Windows 7 in my same pc, and now i got the lastest videocard driver, so im unable to fix this problem.

This is the message's screen, if someone got the same problem and solved it, write here please