With Windows Vista / 7
Start Button » Control Panel » System » System and Maintenance.
Click on Advanced system settings. Administrator permission required.
Under Performance, click Settings.
Click on the tab DEP data, then click on "Turn on DEP data for all programs and services except those I select."
Then you click on the button "Add" and you add all the following software:
(they are all at the root of game)
- rscenter2011.exe
- rsrbr3dratio.exe
- RichardBurnsRally_SSE.exe
- RichardBurnsRally.exe
- RBR Startup.exe
- RBRdll.exe
- CamHack.exe
- LanceurAddOns.exe
- SETUP_MANAGER2.exe
- SKINS_MANAGER2.exe
- sendreplays.exe
- sendtimes.exe
- SkinsWizard.exe
Save changes, then re-boot your computer and you do a test
We try to found why.
So, if some of your friends have se same problem, tell us to look at your message here 
