[Bug 38587] RF:G is Incredibly Laggy, Then Crashes

https://bugs.winehq.org/show_bug.cgi?id=38587

--- Comment #5 from Austin English  ---
(In reply to superrobowizard from comment #4)
> Updating to 1.7 fixed the lag issue, but now when I try to set the game to
> windowed mode, the screen goes black. After a while I can see my cursor
> again, but I still can't see anything. (I had to log off to get everything
> working again)

Probably not the issue, but you're missing libgnutls and winbind.