I might be a bit paranoid but I was not too much happy with the font smoothing on the device. Somehow on Iliad I can not see individual pixels in glyphs, but on DR800S this is quite easily possible .. (worse display quality? cannot be
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Here's a script to turn on/off font smoothing with the options standard for my Ubuntu. Call the item from SDCard/Programs/ folder and see if it makes any difference for you. To turn the things back as they were just apply the script again. Personally I can see some improvement, best viewed on glyph "d" of the main menu items.
For the interested ones please see .fonts.conf file in the archive.