I am having the same problem as you and also the same as 55chev. sometimes it takes days to clear off a post that keeps coming back and shows up as new when it is not but just the last one in that catagory.
I sure hate it when I look at a attachment and then when i hit the back button it kicks me forward to the next page even though I am not at the end of the one that I was on????
Kinda makes me feel better that I am not going crazy alone.
Pantera
