Sun Dec 22, 2013 8:52 am by lax
You might have a keylogger. A common one recently shows up as "stij.exe" in your process list in Windows Task Manager if you want to quickly check for that. If it's there, shut it down and immediately find a way to get rid of it.
Otherwise get me "Diagnostics for game crashes" from ISBoxer's Help menu. The instructions say to get them from an instance launched without Inner Space/ISBoxer, but since it's not crashing please just get it from an instance you have running via ISBoxer.
http://isboxer.com/wiki/Diagnostics