You have described a problem which we have had since week one. We've been through three 8800's, which has not resolved that problem(or any of the other shortcomings of the 8800).

BTW, we had Opera Mini installed only briefly(just long enough to discover that it offered no benefits to us, then I uninstalled it), so that definitely wasn't the cause, in our case.

In the end, Tech Support told us to try the battery pull and, if that didn't resolve it, then it was an overloaded tower and to try using it, some other time.

In my experience, the battery pull works about 50 percent of the time. In the other cases, I simply don't use any of the data features for anywhere from 2-6 hours, and the data access restores, all by itself.