Thanks for the suggestions, unfortunately I do all of that. I think the problem is as Vlad suggest - my table is very small & it is probably all buffered, I am going to try his suggestions to force a reread of the buffers (at the moment the 'go top' fixes the problem & this app is very low priority & the single user version is acceptable for a while longer).

>well, I will tell you a small solution to fix your problem and make your app. multi user, all you need is the following:
>
>in the start of you program I asume it is prg file add
>set exclusive off
>set reprocess to auto
>
>in each time you save add this commands.
>select tablename
>if flock() or rlock() depend on which level you need to work
>replace field with var
>endif
>unlock
>
>be careful of and counters you have because you have to check if the value is exist or not.
>
>
>good luck
>
>Hisham