The steps that I followed:
1. Choose File menu > Define Fields
2. In the Define Fields dialog box, I double-clicked on the field that I wanted to set as a serial number
3. In the Options, I clicked on the Auto-Enter tab and checked the Serial Number box.
4. I set the Next Value to 5 and Increment BY to 1
5. I clicked OK then DONE and tried creating new files.
I tried it using a number field and I tried it using a text field but neither worked. I was able to make it work before when it was in FileMaker 4, but when I converted the database to Filemaker 5, it stopped working.
Also, I put the database on a NT 4.0 box and am using the NT box as the server. I have copied the database to a seperate file to work on it with a seperate PC. Three PCs are accessing the database. Each PC has it's own Filemaker 5 license and the server has Filemaker Server 5.
I am an advanced developer of Microsoft Access, but a newbie to Filemaker. So far, it seems like a great program. Anyway, any help would be great! Thanks -- Jarrod