When I type, there has been a slight delay between when the key is pressed and when the letters appear on screen. Occasionally when typing, nothing appears for a second and then the letters stutter onto screen with some repeating and other keys missed.
I'm running Windows 7 x64 SP1 with an i5-3450 cpu and an ssd as my main drive. My first thought was that it might be caused by the Autohotkey script I have running, but the problem persists without it. The keyboard works fine on other computers.
I've checked resource manager for CPU, memory, disk, and network utilization when this happens, and no resource seems to be maxing out.