Issue with right mouse button randomly not clicking only while in a game.

Hello and happy holidays, friends.

I've been having this strange issue with my laptop (Aspire v3-771G, if it's of any relevance) for a couple of months now and I haven't been able to find a fix for it.

Essentially, my mouse appears to randomly not register right clicks, or if I'm holding it down, it doesn't keep pressed but rather stops for brief moments. As the title says, this only happens when I'm playing a video game. Outside of that, my mouse is just fine.

I think it's safe to say it's a software issue and not a hardware one (I'd bought a new mouse too and it still had the issue).

From what I've been researching on the internet, it would seem to be some sort of faulty executable that I need to close to get the right clicks to function properly again. Only problem is I haven't been able to find the culprit.

What should I do?

Thanks in advance.

Ps. I'm using Windows 8 64-bit.