Editor not apearing properly after upgrade#

After upgrading from ModX 1.0.1 to 1.0.4 the content editor is not appearing and half the page is blank. Also TinyMCE is no longer in the options for "Editor to use".

I have tried in multiple browsers and tried upgrading twice (using the ModX installer).

Any help would be most appreciated!

Are you sure that you uploaded all the files (particularly the assets/plugins folders)?

Well I thought so but a re-upload has sorted it, thanks for your help.