http://bugs.winehq.org/show_bug.cgi?id=15909
--- Comment #1 from Roderick Colenbrander thunderbird2k@gmx.net 2008-11-05 04:53:48 --- In fact Wine is something similar to GTK or QT. We don't directly interface with hardware but use Xlib in combination with XRender, XRandr, XF86VidMode, Composite, GLX and other extensions. Most likely we make some XRandr (or XF86VidMode but XRandr is the default) calls at startup which cause this but I don't think it is a bug in Wine but a driver bug as calling XRandR is normal.