Same error here. Using the latest WordPress version 3.0.3 and Did one of you try to change eg ZIP to TAR or to FTP instead of Dropbox?
[2010-12-28 12:08:01 pm] *** wpTimeMachine plugin loaded 1.9.16 ***
[2010-12-28 12:08:01 pm] --- System / Environmental Checks:
[2010-12-28 12:08:01 pm] --- WordPress: 3.0.3
[2010-12-28 12:08:01 pm] --- Browser: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 ( .NET CLR 3.5.30729)
[2010-12-28 12:08:01 pm] --- PHP: version 5.2.14
[2010-12-28 12:08:01 pm] --- cURL: version 7.21.1
[2010-12-28 12:08:01 pm] --- wp-content writable: yes
[2010-12-28 12:08:01 pm] --- Current Offsite Provider: dropbox
[2010-12-28 12:08:01 pm] --- Start to generate archives...
[2010-12-28 12:08:01 pm] --- wpTimeMachine-content-files.zip, will contain:
and after some directories it stop with the message:
Your archives have NOT been completed
Unfortunately more information is not available (yet).