[citation][nom]Article[/nom]In Windows Vista, a single application could hold a system-wide lock on the GDI, basically creating a bottleneck, especially if there are other applications waiting in line to access the graphics stack.
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Can that bottleneck happen while direct3d applications are running? I'm experiencing pauses of up to 15-20 seconds when playing saints row 2 - but I'm assuming it's simply because of the poor port with very littme memory optimization. It's almost immidiately listed with 1.7gb committed memory in the task manager. Anyway, even in fullscreen it's actually running in a seamless window, so while it's 3d, it's still sitting on top of the desktop.