ok this is weird,
the machine running the admin pages with the cute editor on them is my local machine running XP with IIS on the network. I had some other applications running this morning when the error with submission of large fields was happening (other users reported this and then i encountered the same error)

I have just recently restarted the computer, and to my amazement all these errors went away. I am able to submit a VERY large chunk of html without any errors whatsoever. I have not performed any changes to the code, only a restart.

THis leads me to believe that the error might be related to memory? I noticed that when submitting a very big block of html in the form it pauses for a few moments (10-15 seconds) before the form gets submitted.
Also, firefox is not coming up with any errors either any more.  I will see what happens when the computer stays on for a while and if the error comes back when submitting a large block of html...

This is all very confusing now.

Could you please answer to my other issues in the previous post please...