Marketplace offers downloads in notifications but when I tap notification none are available I've seen some other places with this question, but no answers that explain/help with what's going on.

I've got a Droid 3, and about once a day I get a notification that there are updates available for my apps. When I tap the notification to be taken to the market place; however, there are either no apps to update or the wrong number of apps (i.e. notification says 2, only one app is available).

Does anyone know why this is happening or if there's a way to resolve it?
If you have multiple Google accounts setup, click menu, then accounts, to make sure the proper account is selected. Then click menu, then my apps.