Nobody can tell you anything. You are not even telling us the exact wording of thne error message, much less offering any system info or details about what is involved in your files. Much too vague and imprecise on all accounts...
Thanks for your response. I wasn't sure how much info was required.
The error message simply says: "A file I/O error has occurred."
The ai file is 144MB, has 10 layers, 9 layers being vector line art only, one layer has vector line art plus a little type.
Both computers used are PC's. I usually save the file to a flash drive so that I can take it home.
Please let me know if you need more information.
I usually save the file to a flash drive so that I can take it home.
Don't. Save them to a local fixed drive and only then move them to the storage media. This could be all sorts of things like insufficient USB bus speed or driver issues with another device plugged on to the USB bus just as it could be more generic file I/O problems. Saving to a conventional location no doubt will eliminate the majority of your problems....