For some reason, when I go to ATO - Center Column - I can only see one line of the Loop - if I click in the box and select all and paste it to textEdit, all the code is there - what happened??
This goes for content above and below as well - the text boxes used to be multi-line - now they're single line -

I've got 3.5.1
and wordpress 3.0
Firefox 3.5.10

it is probably a java conflict with a plugin. Try disabling all the pluging and see if the box gets bigger.

That did the trick, thanks!