I second the perfect viewers recommendation. Just be sure to do these:
1. Use the tollbox quick setup for "comics" (will make preference selections for you easier than hunting through their zillions of choices)
2. Check the box for reading left-to-right. (Most manga reads oriental style right to left so you have yo set this according to style/language of the graphic novel)
3. Before you open your first title, spend a goodly amount of time studying the touch zone map laid out on th pv s screen. This tells you what zone to touch to:
Its been a recurring theme amongst us pv readers that we wish there were an easy way to call up this zone map again. So far the only way i know is to actually close all open titles. Its really just a growing pain... ultimately its just so easy and feature rich that other readers don't compare.