Hi there,

So, I'm kinda new to this whole...thing (never posted on a forum before, I hope I'm doing it ok). Calibre has really helped me a lot with transferring my library to my brand-new-first-ever Kindle, yay!
But. No matter what I try (uploading them all to the device at once, or in smaller groups),
at some point it starts re-uploading books that are already on the device every time I connect the device to my computer (like, about 20 files, the same ones every time, they appear anew on my Kindle like I just transferred them as well for the first time)...does anyone know how to fix/prevent this? Pleaseeeee it's driving me crazy and I don't know how to fix it, please tell me there's a way how



