So I'm having a weird issue with my app updates. Every so often (daily) I get a notice on my live tile for the app store that I have updates available, but when I launch it, there aren't any, and when I close it they go away for a little while. For instance right now it says I have 8 updates, but there aren't any. This number has slowly grown as well over the past few months too, as it used to be a couple, then a few and so on till now reaching 8. I'm using a Lumia 900 running 7.5 on AT&T in the US. Is anyone else having this issue, and if so how do you fix it (if you have)???