Using Alternate Hot Keys
Some applications and keyboard enhancement software can lock up or remap your keyboard, making it impossible to use your Print Screen key for printing or capturing images. You can use any of the following key combinations instead of the Print Screen key to print and/or capture your screen:

To use these three-key combinations, hold down the first two keys (e.g. "Ctrl" and "Alt") and then press the third key (e.g. "P").