Using a PS2 controller with Steam games? Due to the low cost and familiarity of the good old-fashioned Playstation 2 controller, I decided to buy one along with a converter to USB. My computer (Windows 8.1) recognizes it perfectly, and it works great for emulators. But most (puzzling, not *all*) Steam games don't even recognize I have a controller plugged in. Xpadder also doesn't recognize a controller.

Any ideas? Possible solutions? Workarounds? Thanks!