Only in Windows Live Mail, Cursor can't arrow left or right? (Not the keyboard)

[GoodEnough]

Only in Windows Live Mail, the cursor can't arrow left or right. So, I can't go back and edit something. I can only delete. This is a major pain.

It's not the keyboard, b/c I can move the cursor left/right in other applications.
Anyone ever have this?

 

[Bubbaleone]

Start>Control Panel>Programs and Features>Live Essentials>Repair.