Xserver unable to start after reboot

Suddenly my xserver stopped working after reboot.
I wasted almost a day trying to start xserver again. Then I went through some sites and finally I found a work around. I simply linked usr/X11R6/lib/libXfont.so.1 to libXfont.so.1.4.1 through the intermediary of libXfont.so.1.5 symbolic link and it started working.

ls -la /usr/X11R6/lib/libXfont.so*
lrwxrwxrwx 1 root root 15 Jan 3 11:16 /usr/X11R6/lib/libXfont.so.1 -> libXfont.so.1.5
lrwxrwxrwx 1 root root 22 Jul 16 17:49 /usr/X11R6/lib/libXfont.so.1.4.1 -> /usr/lib/libXfont.so.1
lrwxrwxrwx 1 root root 32 Jul 16 18:33 /usr/X11R6/lib/libXfont.so.1.5 -> /usr/X11R6/lib/libXfont.so.1.4.1
-rwxr-xr-x 1 root root 388012 Jul 26 2008 /usr/X11R6/lib/libXfont.so.1.5.bak