The only thing you changed was the border color?
You must have changed something if it's that broken. Upload a fresh copy of ./jscripts/editor.js, ./jscripts/editor_themes/ and its contents, and ./images/codebuttons/ and its contents.
Haven't changed anything

Anyone please help me?
Well did you reupload those files like I suggested...??
What's it like on the default theme??
Yeah I reuploaded those. I'll try the default theme.
Looking completely normal there.
Test account details are
test
test123
Did you installed any editor-related plugin?
it appears to be related to jquery conflict..
edit: confirmed !!
MyCode Editor Not Showing Up
Edit
:oops: there appears to be a bug in the theme -
reported here
temporary fix could be :
try below in the stylesheet.css ( jscripts --> theme folder )
#message_new {height:280px !important;}
Problem solved, thanks to ranjani!
