In trying to install and get used to KDE Trinity, I find that there is a problem when having it installed simultaneously with KDE 3.5, but no problem having it in the distro simultaneously with KDE 4. When I install it on a distro containing KDE 3.5, I find that 3.5 and Trinity get mixed up. That is, when I start 3.5 at the session menu, 3.5 starts but displays most or all the unique characteristics of Trinity, such as Trinity desktop themes and wanting to sudo root-needing programs instead of asking for the root password. The only solution I can find is to get rid of Trinity; then KDE 3.5 goes back to normal.

This does not occur in KDE 4: I tried installing Trinity in a virtualbox installation of MEPIS 9 or 11, and it proved perfectly able to keep KDE 4 and Trinity separate.

Has anyone else observed this problem?

No, you can't have both, and expect them to work in different ways.

Both are KDE 3.5, and use the same configuration files, like
/home/<name>/.kde3/share/config , etc.

1 members found this post helpful.

Thanks, that answers my question.