Dropbox like client for Kolab

[alby87 at inwind.it]

Hi!
I'm searching for a software that can act like a Dropbox client (for synchronization). I need the possibility to access offline at those files. The Allway Sync sometimes work, and sometimes not.

GM UniversalSync gives this error: "WebDAV property "getlastmodified" not provided by the server." It's webDAV working on Kolab? Do you know a free software that can help me? Thank you!
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