Ok, whenever I launch a game, I get an error message: stop invalid allocation 0 bytes I looked it up on ms support and it states: This behavior may occur if your joystick has 32 buttons, or if you have one of the following input devices connected to your computer: • StickWorks F22 Digital Pro controller • Wacom Intuos graphics tablet • Saitek P8000 Keyboard for Gamers • Saitek Optical Mouse Pro I don't have a joystick, and I'm using MS wireless keyboard/mouse it can only be Wacom. But I dont have a graphics tablet that i know of. I did a search and found 2 sys. files named wacompen.sys in windows folder, but nothing else. All I can think of is that it must be a part of MS Visio CAD? Do I have to uninstall Visio? Any thoughts much appreciated.