Yikes. Midway during a 5-hour depo, my Lightspeed starts dropping strokes, sometimes several strokes in a row and sometimes just registering a few letters of the stroke, which makes for an interesting translation. Like writing with a pen that has air bubbles in the ink cartridge is the only way I can describe it. It finally gets back on track, and I'm happy to say I'm recovering nicely from the heart attack. Anyone having this problem? Thanks, Denise