I am not experiencing any of the above on any of my sites. One change I see is Google has gotten better at indexing all my pages and in less time. I really can't speak for others. With the one page only having a pr of 1, it just seems kind of low. I would not expect the sub pages to to be greater then a pr of one, this means pr0 or "greyed". If you raise that pr1 page up I bet Google would index the subpages faster. So until you get that pr up you will just have to wait a little longer. I really feel you should work on your pr, but I don't think that the answer you want to hear.