Fedora 10 Dell Inspiron 1525 - Freezing

[broonu]

hi all

I just installed Fedora 10 on Dell Inspiron 1525 this week.
Everything is working ok, all the hardware was recognized, but the system is freezing sometimes. It seems to be just the graphical interface, because when i try to play cs1.6 with wine or other heavy-load graphical program, the system freezes, including the sound. The mouse pointer still moves but buttons not, same with keyboard. Although, i can ssh to the machine and use it normally, i can even reboot the machine, everything works.
Anyone here is getting this behavior? Do i need to post my configs/logs here?
Sorry for my english and thanks in advance.