Michel,

I know you use NS6 yourself. But did you ever try to reply to a message, have the original message within the reply, and start deleting some lines of the original message ? it really is a pain ...

The cursor drops to random places where you really are not. There seems no way to let itself correct this positioning but for inserting a new line "somewhere". This will show where the cusror really is, but in between inserted the line in the middle of whereever the cursor really was. So you have to delete that, and the thing starts over.

A small tip, possibly related to the phenomenon : when a message is viewed and the mouse is hovered over the bottom buttons (like "Reply to this message") the form is extened with one line at the bottom.

Note : If you don't have this yourself, it is the most hard to make clear what I mean.