I'm unsuccessful in downloading and installing Thunderbird and need some help. Here's what happens. At Thunderbird's Web site, I click on the green button to download Thunderbird 2.0.0.16 for Linux i686 English (US) After it downloads, I click open in the download window and select Open with xarchiver (default) It begins extracting it to /tmp/thunderbird-2.0.0.16.t Before it finishes, it stops with the error message "An error occurred while accessing the archive." Help!