yeah...As I said many times before on this foro, the page performance behaves very randomly....Sometimes everything works fine and the speed is great and sometimes in the middle of the book the reading experience becomes a nightmare...
I have tried different ways to transform epubs (different programs, different book sources), I have tried to avoid the page marks, I have tried different firmwares but I just cannot see a clear reason why this happen....
As I said in a previous post, I gave up on this device.. Too many software problems and with every new firmware new problems appear again..
Probably it's an excellent device but the reading experience should be much easy and simple. Like you said, I cannot even give this ereader to a friend or family because it has too many flaws.... I had other readers and despite its problems (no device is perfect) the experience was much better...
I have spent more time reading on this foro than on the device