I do have GLX enabled (direct rendering available), but not Composite, and I'm not even sure what the Damage extension is. It doesn't have anything to do with the speed of my X server because it flickers even on a GeForce 6800GT with an Athlon X2 4200+. Take your "works under win32" comments to the win32 thread! :-P Of course it has something to do with WINE, there isn't even a complete syslistview32 implementation in wine at all (for starters they don't support extended list view styles at all). What I was hoping was that I could find a reason it flickers under wine, come up with a workaround, and see if it works just as well for win32. Of course, if it turns out to be the GDI implementation in wine, we're all boned. There isn't a way I could get an non-packed version of utorrent is there? When I was tracking down the problem with the networking it was a real pain in the ass to attach the debugger after the process unpacked, as well as preventing me from using IDA.