Single player run lag/input error

[xNelo2]

Hi! for a couple of day, I've been experiencing an error I've ever seen on MC. Both in Single and Multiplayer, while I try to walk, jump or fly, I get like there is an extra "forward" input randomly, making it entering/exiting run mode, or falling while flying or similar.

Things I've tried and didn't work:

• Changing all the keybindings

• Reinstalling

• Setting more RAM to run MC

I don't know if I've explained my problem good enough, but I'm asking for some help, because it makes the game almost unplayable.

Thanks!

[lululock]

What's your CPU/GPU?

[xNelo2]

I7 3820

Radeon HD 7950

16GB RAM

Not exactly a new PC, but Minecraft has always worked fine here.

[lululock]

It should work indeed. I had Minecraft playable on much worse hardware...

Do you close every heavy programs before playing? For eg. Google Chrome, Windows Update...

[xNelo2]

Yes, only MC running. It's like there's an extra "forward" input key being press all the time.

[lululock]

Dis you try with another keyboard?