This is a weird issue, I've got a Lenovo laptop running Windows 7 Enterprise. Whenever I type the word mount or account as I hit the n it beeps.
I've tried other similar words, sprout, tout etc but they don't trigger the beep.
When I was running Linux on the machine I noticed that occasionally the n wouldn't appear when I typed it. I assumed this was due to me not hitting the key in the right way to trigger it but I guess it could be the same issue as it was usually when I was typing mount that I noticed it.
No other keys are stuck and it is doing it in various apps so not just one particular one. Any ideas what it could be?