I purchased the Elonex 500EB ereader after reading a large number of reviews, mostly satisfactory. I then loaded a dozen books onto the unit including the complete works of Shakespeare. I was horried to find that there was no table of contents facility on the unit. To get to a page near the end of 'the works' I might have to click over 3000 pages! It's the same for all large books. You cannot easily navigate around the book to a specific act, scene or chapter as you can with other ereaders. I phoned Elonex support - 3 times and each time I was told that they would email me back with a reply to my query. They never did. I asked if there was supposed to be a TOC facility. Support did not know!? They eventually said that they didn't think so but their technicians might work on a firmware patch, and suggested that I return the unit to the retailer. I, too, had occasional problems with poor formatting. A shoddy product and shoddy support from Elonex.