I do a search in the new app market and options come up and when I click on it , I can see everything and do everything but the install button does not work. On apps I have the update button does not work but the unistall desists not the screen or the phone.
there is an option somewhere (maybe in settings?) to "allow the install of 3rd party apps." this has to be selected or you can't install anything but verizon apps.
Thats correct, that should not affect the market apps because the apps are not from a unknown source, that is for when you sideload a app from a unknow developer source.. Out of curiousity are you seeing and errors? Try going to Settings >> Applications >>Manage Applications and look for app and see if there is a option to Clear Data and then see if that helps.