>>>Dear
>>>
>>>I have deleted foxuser but faild
>>>I do use indexing. I use locate for command instead of indexing
>>>
>>>Reinstalled Windows and vfp but could not get rid of this error message
>>>
>>>The amazing fact is: this software run perfectly on other computers.
>>
>>Check also this thread Invalid Seek Offset - One solution Thread #1302291 but usually it's very hard to find the corruption. Try changing printers.
>
>Doesn't this sound as if the problem may be with the project tables ?

Could be. It may be a good idea to also create new project files (delete the original) by adding main program and all indirectly referenced programs.