Unfortunately, the original KanjiNirvana was never desigined with the VGA models in mind. The current release of KanjiNirvana includes some fixes to allow it to work with VGA, but it's not perfect.
I worked (for quite a while) on a redesigned version of KanjiNirvana (2.0), which was aimed mainly for VGA, but eventually I found that I was spending more time programming than actually studying Japanese, and thus lost interest. There is still a copy of my work in progress in the CVS on sourceforge (kani2), but I don't think the files on there will build. I've recently unearthed the project, and if I can get it to compile again, I'll put that version up, in case anyone feels like working on it.
I myself am thinking about taking the quiz feature of KN and making a seperate program out of it. As for a word/kanji dictionary, I find Sharp's built-in dict (on the 760/860) more than adequite... of course, this doesn't help someone on the C700, sorry.
- ashikase
anpachi, gifu, japan