We have 2 users working with Solidworks 2009 x64 on Windows Vista Business x64.  When the users export to an iges file, the operation completes, but if they try to open the created IGES file on their workstation they receive the error "Unable to read iges file. File was truncated or contains invalid data."  The same file will open on other computers that are not running windows vista x64.  I found a couple other threads on this issue but no resolutions were given.  Does any one have an explanation or resolution to this issue?

Thanks,

Brian