11-24-2011 04:16 PM
11-24-2011 08:46 PM
Can't help with the highlights, as I rarely use them.
The bookmark issue is most likely due to the fact that, often, ereader devices will take several displayed pages (page turns) to show all the information for that "page." When you go to a bookmark on a page either on the same device or a different device, it will go to the first of those displayed pages.
This is further complicated if you are using two different devices that may break up that data "page" in different ways due to screen/font size. As far as I know, there is no technical fix for this; it's just a technical quirk of the format.