Atomic Systems

hello everyone i need help
when i start RW and click on locomotive these two errors appears:



http://i543.photobucket.com/albums/gg46 ... e/prob.jpg

I have last drivers for my Radeon 4650... and i don't know what is problem
any help?
Thanks

From the RailWorks launcher, click on Tools & Docs tab, then click on the "Clear Cache" button.
If that doesn't fix the problem, you may need to update your PhysX, or try installing the ones that comes with RailWorks.
Navigate to where you have RailWorks installed and find the Install folder; example c:\steam\steamapps\common\railworks\install
Find and run the "PhysX_6.10.25_SystemSoftware.exe" file to install the version of PhysX drivers that comes with RailWorks.