BB Bold :: 9900 - Menu Key And Track Key Not Working Properly

I've had my bold for just over 4 months now and in the last few days my menu key and track key aren't working properly. When I press the menu key it brings up my switch app window (I'm literally just pressing it, not holding it down for a few secs) and will do this 4 or 5 times before it brings up the options. Now my track key is going. I press it and it'll bring my options up. I can do this 3 or 4 times before it'll actually go into the icon or link that I'm wanting . I've tried the whole reboot with the phone on and it does nothing.

My last bold I had 19 months and did not once have a problem with it (other than the deep scratch I put in the screen!), 4 months with this and I can't even use the basic and most important keys on the bloody phone!