Ok. I have updated the firmware and everything look fine indeed: the loading times, the quicker response when changing books. All looks great.
There is however an issue I am not clear about just yet. Where and who makes epub ebooks?
I have made sme searches and it seems that almost no one likes it yet, and worse still there are no places where to find such ebooks.
Am I mistaken? I will appreciate any light in this question. I'm still new in the ebook culture
Thanks a lot
Guillermo