Yep. Picked up a DS Lite yesterday at Target, woke up today, fired up New Super Mario Bros. and noticed the touchscreen wasnt' working. Tried the calibration and everything. No go. Going to exchange it today. Anyone else hear of issues like this? It's not like I was using a fork as a stylus while taking a bath. I've put it through completely normal if not light use since I got it. It's not like New SMB is a touchscreen heavy game anyways.
Oh well, just thought I'd vent my frustration. I hope the second unit is fine. I was really looking forward to getting into this system.