Yesterday when a client uploaded new content on an existing page the copy lost formatting, continued across the right column and off the page instead of staying within the area. She had copied directly from Word so I thought that could be the issue - I removed, un-formatted and put the copy back in but it still had the same problem. That seems to have fixed itself, I had installed the TinyMCE-Advanced plugin for white space issues but didn't think this should fix that formatting issue.
Then today when adding a new post the copy within the admin system is not formatting or staying within the window and I've lost the ability to scroll, but when it previewed and published it was ok. The site is http://www.stretch-fitness.co.uk.
Any advice would be really appreciated as I'm not sure whether the problems are linked or if I've done something wrong in the build. It uses a customised RealEstateFusion template and is hosted at Go Daddy.