After upgrading to 13.04, I keep getting the same notification stating about over 200 files being uploaded to the storage when I start up ubuntu. I checked my pictures folder and some of my images were still in sync, even if computer was on for 4 hours!!! So I checked the files on the website and I saw "still being synced" images there, but when I tried to download them, the error came up saying that the file could not be downloaded. Furthermore, it was weird that these files had a size of 1 byte compared to other uploaded images. What can I do about this?