http://bugs.winehq.org/show_bug.cgi?id=24516
Summary: In Win7 mode, steam has duplicate window decorations Product: Wine Version: 1.3.3 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: minor Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: adys.wh@gmail.com
Steam has window manager's window decorations in addition to its own when run in Windows 7 mode. This doesn't happen in Windows XP.
Maybe related: When run in virtual desktop, the desktop opens but steam isn't bound to it (it's a separate window).