Did you also check the usual first suspect for these errors - the FoxUser.dbf ?
>Hi folks!
>
>In our Form.load() Method we do since decades some settings for the private Dataenvironment :
>
>...
>set safety off
>set talk off
>set escape off
>SET DELETED ON
>SET SYSFORMAT ON
>...
>
>since 2-3 Years sometimes some Users get c00005 Errors in the Line SET SYSFORMAT ON.
>
>Any suggestions what this could be?
If it's not broken, fix it until it is.
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