[christ30mac]

Thanks for that. It has happened on 3 sets of files that i have worked on separately in the same hour. I saved them and e mailed them and then later I could not open them.
The person I emailed them to could open them no problem.
I actually got the attachments out of my sent e mails and put those copies back into my files that the corrupt ones were in. I am using sync two folders to sync with a crucial gizmo 4gb usb drive. At one point I was using a brief case in windows to sync the p.c. with the usb. Do you think it might be a faulty usb ?