I posted this problem , one month back. This started when qt-copy upgraded to Qt4.x . makghosh told me to console login and do a startx , which helped.
I just wrote a new .xinitrc file in my home directory.
exec ~/kde/bin/startkde
And after doing a console login from Ctrl + Alt + F1, I am just typing : startx – :1
Thanks to Hobbes for the command syntax
