First of all - this problem just appeared, though I have had no issues with this computer (or the keyboard I've been using) until this point. I have been using other operating systems on other partitions, so maybe that has somehow changed some of windows
settings?
When I'm in a game, and I press down a key everything is normal for a few seconds. Then, however, the key flickers on and off. For example, if I try and open a menu (which is achieved by pressing + holding tab) the menu will open normally at first, but then
flicker. If I attempt to move (which is done by pressing + holding 'W'), I will move normally at first, but then make jerky movement (like I'm starting and stopping rapidly).
Essentially, it seems like games are treating key presses as a textbox would (holding a key down sends that character once, then after a delay many more times).
I would also like to note that this is not an issue with just one game - I have tried three different games (none of which have ever given any issues like this) and they are all experiencing this issue.