I have been on the phone with Amazon for a while now trying to figure this out... actually I am on hold right now
Here is what happens...
I read on my iPhone and my Kindle recognizes the furthest page read as do all other devices... and I have an iPhone, Ipod Touch, Kindle for Mac and PC...
I read on my DX and then put it down none of my other devices recognize the farthest page read.
What actually happens is that my DX want to revert back to the last updated position that is actually further back...
Does this make sense? I have reset the Kindle, it is running the latest firmware, I made use that sync between devices is on...
All my devices play nice so the problem has to be with the Kindle... any ideas?