>Recently I've been getting error 1104, "Error Reading File" on a number of different applications. The events
>that trigger the error are replace statments, sql commands and rlock() functions. Closing and reopening the
>data table fixes the error condition temporarily. The error is sporadic, and doesn't happen with any regularity
>at all, and so cannot be reproduced. I'm using VFP7 with the latest service pack on various windows platforms,
>ME, 2K, Win98, NT on both windows and Novelle networks. The same application is running on different client
>sites, and two thirds of these sites are error free, while the other third errors out two or more times a day.
>
>I'm clueless as to what to try to correct the error, or even what causes it. Can someone point me in the right
>direction please? Thanks!

Sounds like flaky networks. Can you get a network expert to do some troubleshooting at the problem sites?