I'm a Linux user with Open Office 3.0 by night and Win XP with MS Office 2003 by day. A friend recently sent me a .docx file from MS Office 2k7. I was unable to

I'm a Linux user with Open Office 3.0 by night and Win XP with MS Office 2003 by day. A friend recently sent me a .docx file from MS Office 2k7. I was unable to open it in OO 3.0 but it worked fine in Word 2003 (it's supposed to work in OO). Just yesterday I typed a Word 2003 doc with heavy use of formatting... OO was unable to preserve the margins. I've found that Excel spreadsheets which make heavy use of macros will open but the macros probably won't work. That being said, I used Open Office exclusively when I was in school and personally felt the UI was easier to use didn't find the features lacking. I've never had trouble taking a file from OO to MSO, but the reverse will often have cosmetic defects.