I use Ubuntu too -sorry for euphony-.
I use grsync to synchro my main memory and my SD card on my computer. I do that every time I upload a book on the reader.
This could possibly later avoid you some trouble because I guess your main memory does not like too much to be close to fill up limit?
A 2 GB SD card seems to be a recommended buy for you.
Also you could try to reinstall the Sony firmware first?
I do not have any problem with "heavy" pdf and I use lots of them. But I take care before uploading to enter their meta-data carefully with PDF info (using Wine) or another software of this kind (A-PDF Info, BeCyPDFMeta edit or other...)
Last edited by roger64; 04-27-2009 at 06:23 AM.
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