App Store is just a blank page
I open the iTunes store, the music store loads fine, so do all the other stores except the app store -- I get a blank screen. No error code, no pop up, just a blank space where the App Store should be. If I look up an app in my Firefox browser, I can hit the "view in iTunes link" and see the app in iTunes and even download it. If I click on the category the app is in (like "Games"), I get a blank screen again. I'm running Win 7 home premium 64 bit, my DSL is running fine, otherwise (surfing, Spotify, YouTube, Netflix...).
Anyone else having the same problem? Apple tells me it's not on their end. Should I reinstall iTunes?
Windows XP