hello, i've got this 840i. it burns dvd's and cd-rw's fine, lightscribes as well, but whenever i try burn a cd-r at whatever speeds at about 30% done I always(!) get a "Track follow error". I am not tech savvy @ this stuff, but i reckon it's a calibration error?
Had to throw out all my cds (including the HP's sample lightscribe cd). Flashed from ff66 to a newer version. no change.. very upset.
I've heard ppl crossflash these into LG-4166b? where can i find more info and would it help (as it voids the warranty I would like to know if it's worth it)? or should I start walking towards the shop i bought this at?

btw, here is the firmware
http://h10025.www1.hp.com/ewfrf/wc/g...reg_R1002_USEN