Line edit Problems

If your going to use notepad, use save as; then change the save as type to all files otherwise it will default to txt.
Also check you don't have a tick next to word wrap in the format menu.

You can try using notepad++ (http://linuxsat-support.com/showthread.php?t=8511&p=304048&viewfull=1#post304048)
It should preserve the format of the text file.

or better still, use something like DCC (DreamControlCenter) to edit your lines