[tomsem]

Kindle might be having a problem indexing one of your items. When that happens, indexing runs in the background more or less continuously without actually doing anything. This could happen, for example, if one of your books is corrupt, or if you copied it from a different Kindle or Kindle app. To index, the Kindle needs to be able to open the book, and it can only do that if it has the correct DRM key (or the book is DRM free).

To see if this is the problem, go to Home screen, type '.' (period) and then the Select or Enter button. This will display the Search Results screen, and it will either show you 'No Items' (which means it is done indexing) or 'Items to be indexed' (or something like that) in which case it is indexing stuff. Select the item and it will display the items that have not yet been indexed.

To fix it, you need to remove any item that can't be indexed (either because of file corruption or wrong DRM key). You can try deleting from Home screen but that might not work since the index routine will have the file open. The easiest way to proceed is to note the item it was trying to index, attach via USB to your computer, navigate to the documents folder on Kindle with file explorer/finder, and find and delete the item. Then unmount/eject Kindle and see if it finishes indexing (again by the '.'+enter method). Repeat if necessary.

I had a problem like this when I got my K3. I tried to move my samples from my K2 to the K3 (something I'd done before) but it turns out that does not work with Topaz format samples. I found most of them by trying to open them from Home menu (and getting an error message) but I think I finally found the last one by checking the index queue, which had gotten stuck.