Sorry, Diane, but I really don't have any good ideas. I could guess that you may be using a variable that is not properly initialized in your VALID, but that is about all I can come up with.
Since you say that one workstation but different UIDs give different results, network type problems seem unlikely.

>Hi Jim, thank you for your interest in my issue.
>
>What do you mean by TEMP and SORTWK? and how can i find them?

After re-reading your original I saw that the program is on each workstation, so this is not a problem here. But what they are...
...they can be coded in the CONFIG file to control which directory (and drive, of course) that VFP internal temporary files are written. You may code: TMPFILES = < path > to control ALL of the different types of temoprary files' locations or any of the others (following) that are not specifically coded.
- EDITWORK = < path > to control temp files used by text editor;
- PROGWORK = < path > to control where program cache file is located;
- SORTWORK = < path > to control where general temp files are located.

Each defaults to the startup directory. If your program was loaded at each workstation from a network drive, then you would want to code these so that a LOCAL workstation drive/directory was used, to ensure optimum performance.

good luck


>
>Ram are standard pc133 dimm and they range from 128 mb to 512 mb.
>
>The software is a compiled software installed using a installshield.
>
>First: i have a domain controler running SBS, active directory, win2000 server. I have users, many users.
>
>Second: i have the workstations, they range from p2 400 128mb to p4 1.6 512mb.
>
>I go on any workstation and i log with the user, let say "John". I start the FoxPro software .exe and i do some work and the software respond not correctly. I explain:
>
>I have to enter some data in fields and the data is validated as i exit the field. Let say i enter "10" in "seq.no". 10 is a good number i know it. When i exit the field, a box popup saying that the data is invalid and show me what data are possible and "10" is in the list. so i re-enter "10" and the message still there. So i tried another number that is in the list. let say "2" and guest what, it did the same thing, the same message.
>
>THEN
>
>I go on the same workstation and i log with the user, let say "Mary" (she has the same rights and permission as John). I start the FoxPro software .exe and i do some work and the software respond CORRECTLY!
>
>I go in the same form, i enter "10" into the field "seq.no" and i takes it and all is fine.
>
>I reindexed all the tables but it didn't change anything.
>I'm pretty sure it's not a permission or network problem because both users have full rights to the directory that contain the database and if i want i can delete the database, copy it, etc... so it means that i have full access (right?).
>
>
>Thank for paying attention and i hope you have some ideas!