I am running Lion 10.7.2 with Office for Mac 2011 version 14.1.4. Whenever I try to open a docx file created from a windows box the file opens but most of the content is unreadable. It look like it's a compatibility issue or the file has not converted properly. The files are not corrupt as they open on my XP box just fine.

I thought that this version of office would open docx without any helper apps or converters. This issue has happened with several documents, not just one. Not sure if it matters but I previously had Office 2004 on the Mac prior to upgrading to 2011.

Any advice you could provide or things to try would be greatly appreciated.