http://bugs.winehq.org/show_bug.cgi?id=11188
--- Comment #46 from John M. Drescher drescherjm@gmail.com 2008-10-30 11:04:10 --- I have not seen this effect. Are you sure that you are not loading games that were crashed?
I believe the bug is that the current wine io completion port implementation in wine does not work reliably 100% of the time. And the patch effectively disables IOCP.