Thought I'd ask here, seeing as I have what seems to be a weird problem (in my opinion at least).

I play FFXIV on Windowed mode. If my FFXIV game is not the active window at any point, there is a high chance I will get error 90k. This means that as long as I am playing FFXIV, I cannot surf the net, or watch a video, or even take a moment to set up Teamspeak or something.

This is quite irritating to say the least, and when I posted under Technical Support, it got moved to Separate Support Required.

Would anyone here have an inkling of why this happens, and how I can prevent it?