I have a new (2months old) Dell computer with XP- no problems- hooked up to a Samsung ML1740 laser printer I got last Summer. Initially worked fine. Now at times after several pages or even one page red error light comes on and stops printing. If I shut it off and turn it back on it is generally OK. Checked at the site and downloaded any updates, checked for driver issues or conflicts and everything is OK. The only change is from very expensive paper to regular run of the mill paper. Any ideas?