Jump pads (button presses in general) unresponsive?

It hasn't happened in other games so I don't think my keyboard is dying. But the other day on Grenade III I was on the center pad walked to the jump pad and pressed the f key on the jumper and promptly strutted off the pad like a boss. I tried once more and almost fell AGAIN and the jumper came on after 5 presses but didn't launch me until I stepped off and re stepped on.

The shift key still seems wonky. It was frozen utterly as a support on spunky cola. And sometimes the bomb just WON'T go off as an assault.

Yeah, I can second the jump pad thing. More than once have I been trying to buy a jump pad for whatever reason and it takes an absurd number of tries (more than 1) to get the damn thing to be purchased and activated.