I've seen threads for this in the past but no answers as to what's causing it or if their is a fix. but I've used both Handcent and Go SMS and from time to time it will recieve text and nto give any noticifcation at all. It's really annoying to miss a text for hours on end or until I go into the app just to make certain the notifications didn't stop. Does any one hve any idea what's going on with this?