I didn't have that problem using ezcodes, however, when copying my post from word to the board, the text showed up as black on the black background. I had to do a quick reply and then go advanced to preview it.
I found that when using the WYSIWYG editor, copying straight from Word resulted in having three hard returns between each paragraph. If you have a lot of that trouble, go to your profile and select one of the other options, rather than the WYSIWYG editor.
ezCodes are, for the most part, the exact same. On the bottom of each page there's a little 'Posting Rules' box. Click the link entitled 'vB code' to view the vb code supported by the board.