Error with YUI rich text editor

Hello guys
I have recently started using the YUI rich text editor. I is working perfectly, but the only problem I am facing is that the border between the toolbar and the text area is not visible.
I tried to set the border after the after render is fired but I did not succeed.
The code I am using is attached
My text area is inside a td element. I get to see the following screen:

Any suggestions are most welcome.
Waiting for your response
Kind regards
Judy
