I have installed GPxPatch 3.91 and there seems to be no problem with it. CSM does not work "!£$%"%^^%£&%$"£%$£"%"£
the procedure i follow
1) double click on CSM 1.25 Install.exe and install
2) Then double click on MP2005.cuh wich is the final mega patch mod for 2005
3) when i do that it says select GP4 location
4) i click ok and the select C:\Program Files (x86)\Infogrames\Grand Prix 4
5) then it says "do you want to use the default location for your carsets?" and of course i say no and make a new folder (carsets) inside gpsaves in (C:\Program Files (x86)\Infogrames\Grand Prix 4 directory
6) then it says..."You dont have recovery files in case anything goes wrong. Do you want to make them now?....and i select Yes
7)
so thats what i get and of course when i select ok it crashes to desktop