Re: suddenly when starting InDesign I got this window: "Cannot load Indesign because it requires Layout UI.please install the Layout UI plug-in and restart InDesign." I tried to reinstall, it didn't help. I'm using CS4 on PC windos 7. any ideas?

Naomit2810 your discussion has already been moved to the InDesign forum.  If you click on the View the full discussion link in your e-mail then you can click on the link for suggestion offered by Peter Spier in message #5.