Comment 2 for bug 608474

barra,
Sorry ubuntu One is not working as expected. It definitely should not be overwriting files with older versions. What type of files are they .tar .pdf .txt?

Could you please make the following change to your configuration file. This will increase the logging level in case this happens again additional information can be collected. Please run the following command in a Terminal (Applications .>Accessories >Terminal) to open the file.

gedit ~/.config/ubuntuone/logging.conf

Then add the following two lines to the file:

[logging]
level = DEBUG

u1sdtool -q; u1sdtool -c

Can you also confirm, you are running Ubuntu One on version 8.10?
thank you,
duanedesign