ok, thanks for the early reply, but after looking in dozens of pages for a solution for the problem, i found it!!!!!!!
the problem is not part of the grafic card, it is a problem of windows.
i had "Enable Pointer Trails" on, because i love the trails, but if you enable them, the mouse vanish in the game, i don´t know why, but it happens....
so, if anybody has the same problem:
go to mouse options and disable pointer trails, and it will work....
bless you all....
