Do you have antivurus running on the PC? If you do, make sure that .DBF, .CDX and .FPT extensions are excluded from scanning.

>Sometimes, i still cannot guess when it happens, i get the error 111 :
>"Cannot update the cursor LOG, since it is read-only." for the file LOG, I used the routine Serghey suggested me to retrieve who and how use files and as result, for that file I got this report :
>
>---------------------------------------
>File name: E:\pontinia\dati\Log.dbf
>Locks: 0
>User:FELICE
>Permissions: - Read - Write - ChangeAttributes
>ID for NetFileGetInfo() : 726884
>---------------------------------------
>File name: E:\pontinia\dati\Log.CDX
>Locks: 0
>User:FELICE
>Permissions: - Read
>ID for NetFileGetInfo() : 726886
>---------------------------------------
>The routine which causes the error is always the same and I cannot realize why this error occurs. The procedure which causes the errors is related to a timer event and is launch every 30 seconds, the error occurs once a day maybe twice...
>Any ideas ?
>Alessio