>>11
It doesn't "turn" blue - it's blue to begin with. The blue box is there to indicate to DirectDraw the area the video occupies, and the video itself is added downstream of the display buffer. When you just hit the print screen key, the contents of the display buffer alone are copied to the clipboard, so you only get the blue (or grey, black, green, purple, etc. depending on the software) rectangle. If you're not using the hardware accelerated features of your card, the video is included in the contents of the display buffer (rather than after it), so you do get it when using print screen. However, you may notice a drop in performance when disabling the hardware accelerated features (duh) because you're taking stuff that's handled by the video hardware and making it the CPU's responsibility instead.