I once downloaded a trial of Manga Studio Debut 4, but ended up owning it permanently. There are things that I love about the program, but I'm very bothered by how pixelated the lines of the ink tool look. Playing around the preference settings and working with a 1200 DPI color canvas seems to have improved the lines a tad, but it's still annoyingly pixelated. D=
Here's an example of what I'm talking about.
My Mom got me a copy of the program on CD for a Christmas present before I realized that I already bought the program, so I figured that it could just be a problem with the program I downloaded. Are the pixel lines a fluke with the program I downloaded and the CD might be better or is this normal?
The default B&W mode is designed for working for print, the pixelated lines allow the image to be printed very sharply. If you work at resolutions suitable for print, it shouldn't be noticeable that it's pixelated once the work is seen at its final size.
If you want smooth lines (such as if you're not working for print, or plan to colour your pages so the sharp black lines won't be of use anyway), set your layers to be Raster layers in Gray or Color mode.