It used to be that Linux was the troublemaker whereas in Windows games always worked just fine. Wanted to play with a buddy (Lenovo ThinkPad T230, Win 7 64) tonight but he can't see any game I'm hosting on my Linux box and when he tries to host one himself it just says "Runtime Error". I know this topic is solved but none of the posts contains anything that would help (yes, he has the latest Windows download). So what's the solution? GoG, anyone?
Do you have any specifics on the "Runtime Error"?
At one point I got a "Runtime Error (at 69:599)".
I think I was using the opensource Mesa graphics driver at the time.
I installed the proprietary ATI Catalyst graphics driver and that seemed to fix the issue.
I might test FlatOut at some point with a new linux install and the latest Mesa driver to see if the Runtime Error still happens.