erratic extensions under FMP "Window" menu

[lpm]

Win XP, FMP6, FMP8 Adv

1) I have an older(.fp5) 5-file solution and am analyzing it on two WinXP machines each with FMP6. On one machine under the "Window" menu in the FMP toolbar, the five files are listed WITHOUT extensions (i.e., File1, File2, File3, File4, File5). On the other machine under the "Window" menu in the FMP toolbar, the five files are listed WITH extensions (i.e., File1.fp5, File2.fp5, File3.fp5, File4.fp5, File5.fp5).

2) Also, on one of the machines I have occasionally experienced the same (seemingly random) extensionsWITH and extensionsWITHOUT behavior while viewing the files at different times.

What causes this, and does it matter? Down the road, I'm thinking about converting (to FMP8 ADV) and consolidating the files. TIA lpm

[MarkWilson]

File extentions are controlled by Windows.

Tools > Folder Options... > View (Tab)

Check/Uncheck Hide extentions for known file types