Using KDE4 and KDE3 parallel

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Starting with Ubuntu 8.10 only KDE4 delivered. The old installations have KDE3. Switching between the different desktops may be a problem, because both KDE versions use '.kde' as their configuration directory. With a simple version check in the .bachrc (if you are using the bash) it is possible to maintain two different KDE setups. Add the following code snippet to your .bashrc:

if [[ "$DISTRIB_RELEASE"  == "8.04" ]]; then
    export KDEHOME=~/.kde3
fi

The old tree is hold under '.kde3' an may be deleted if no more KDE3 installations a alive. Especially this technique is useful if you are working on an new host and want to use the nxserver for remove logins. Login server is running Ubuntu 8.04 and will do it for a while.