I am having the same problem. Office 2007 is newly installed. My problem is only with some excel files on my linux suse 10 server. some open fine. Others the computer hangs for a little bit, then comes back with the error can not open file (not much help). But if I copy the file from the server to my desktop I can open the file fine. I am totally confused because it is not all excel files from the server but only some. Any help would be greatly appreciated.. Maybe a fix from Microsoft???