I am using Express Scribe 5.06, with an Infinity IN-USB-2 pedal, and Windows Vista. For about the last week to 10 days, the foot pedal quits working when I have to get up and leave the computer for even very short periods of time (10 seconds or so). If I pause with the sound file, such as doing research but stay at the computer and am clicking around, I do not have a problem, the pedal will still work even though I was inactive with Express Scribe. It is when no input from keyboard, mouse, or pedal is occuring that this happens. It always starts working again when I unplug the pedal from the USB, wait for the recognition sound from the computer, and then replug and get the sound. Over the last 2 days, on occasion, after replugging, when I press the foot pedal it will play but will not stop when I release the pedal. I am able to control using the control panel. I have rebooted several times, uninstalled and reinstalled ExpressScribe twice. The program always retains the green light for Controller status: OK. even though it has quit responding. This is also a relatively new foot pedal, about 5 months old.