I can't log to kde after installing Oracle.
 

I have installed Oracle 10G on Linux Fedora 10. after installing the database everything went successfully even if I reboot my machine so I was very satisfied at this point. When started to install Oracle Developer but with not that's much of success but I got problem in the end of installatin, anyway I closed the installation and I shutdown the pc. In the next day I want to log to linux Fedora to using KDE I couldn't and I got this problem "Could not start kdeinit4. check your installation". KDE was perfect before installing the second oracle but I have no idea why KDE crash and how to have it back again. Actually I played in some library that related in Oracle directory not related to root but I don't know what happend exactly. Please help me in steps to sovle this problem. I'm really afraid of losing the KDE and need to install linux fedora from beginning, Thanks a lot.

Eloquent. Back up your irreplaceable data, reinstall Linux, start over. It's the only way to be sure. The next time you consider installing new software, first make sure your system has adequate resources to handle it, and don't spend time logged in as root.