Thanks guys, did all you said, nothing worked. Don't know really what is the problem. But, I exchanged the exe file with my old UT (the haxed), and now works fine with my steam registry key. I had to reconfigure all my ini file because the one I had was with movement in the y axis.
Really, the cause, no idea, the workout, replace the ut2004.exe file ... which has 4kb less than the steam version
It was running the exe, but the window was not opening. I know it runned because when I deleted the ini files as caly said, it generated new ones. That will not stop me to play ut2k4...
