colin mcrae 2005 to pc still doesen't work

[lejonhane]

I have still the problem:When loading the game it halts on a blank screen with a Protection Error
.Then nothing happends.The game will not start even when i rename the Exe file to :novideo.Do someone know why it still doesen't work for me.?.I have istalled the game 4 times nowbut it still doesnt work.I have the ULTIMA dvd. .does someone know what i could do more.I have installed the game for a friend and it works great..But when i istalled it for my friend the game asked for the seriell number.but not for me.?