http://bugs.winehq.org/show_bug.cgi?id=11966
--- Comment #6 from DARKGuy dark.guy.2008@gmail.com 2008-09-28 18:54:22 --- Created an attachment (id=16344) --> (http://bugs.winehq.org/attachment.cgi?id=16344) GL_LIGHTING and invalid GL operations may cause this issue
This is what happens when you start the game, run map dust2 with 5 bots and automatically see some overbright objects (almost all of them in the whole map)