WYSIWYG editor often eats paragraph breaks

I am using the new WYSIWYG editor that will be in 1.0 beta. When I add a new paragraph using the WYSIWYG editor and then save the page, the paragraph has often been merged into the preceding paragraph. For example, if I have the text: abc def ghi I place the cursor after "def" and hit enter (I've even tried hitting enter twice to create an extra blank line). Then I type "xyz." In the editor, this looks as expected: abc def xyz ghi But then when I hit Save, I see the resulting page as: abc defxyz ghi If I go back into the editor and try to correct the problem, it still happens when I save again. Has anyone else experienced this? Any luck working around it if so? Thanks, - Peter Flynn