Problem with pasting of WORD document at ff

Hi all!

I have a problem with submitting word documents using the firefox 1.0 (not the PR).
Every new line become a paragraph and even "browsing with the keyboard" at the content jump from line to line at specific points without letting you change what you want.
Does anyone know how can I solve it?
By the way with IE 6.0 and WORD 2000 its working fine but I prefer using the firefox because of its complete support at XHTML (beside the fact that its open source and alot better )

Thanks in advance,
Yonatan