Can not edit my program, I know about edit mode

[PATprogrammer]

When I run demo programs I can switch to edit mode, but my program will only come up in run mode. I can not switch to edit mode. Those commands are grayed out and edit tools are disabled.

[Al_S]

It's possible that the VI is locked, which disables editing. In LabView 6.1 or 7.0, if the VI is locked, when you press Ctrl-M, a dialog pops up telling you it's locked and asking if you want to unlock it. You can directly control VI locking from the VI's menu: goto File >> VI Properties >> Category >> Security.

[PATprogrammer]

The version of LabView I'm running is 3.1 (yes...I know it's old). Does this version have the same lock feature?

Thanks

[altenbach]

Another possibility: Maybe the VIs had their diagram removed?

This would prevent any editing of course.

[Al_S]

Try right-clicking on the VI's icon in the upper right corner of the front panel window (not the diagram window) and select VI Setup. See what options are in there.
Sorry I can't be more specific than that. I started with LabView 3.1.1 in 1994 but I haven't seen it in about 8 years.
Upgrade if you can! The productivity enhancements since 3.1 will help the upgrade pay for itself. Plus, it will be easier to find help here. It's kinda hard for most of us to answer questions specific to 3.1.

[PATprogrammer]

I tried your suggestion (Right-clicking). It will work when I open a new project (Setting the VI up)....but not on a project I've been working on. Looks like it's caught in a loop and won't let me edit the VI library.

Hmmm. any other suggestions..... I appreciate what help and suggestions you've given so far. I'm new to the LabView programming enviroment (VB programmer here).

[Al_S]

Another good possibility.
PATprogrammer: have you tried to view the diagram? If you can't get to the diagram (under the Window menu maybe, or, for 3.1 I think, press Ctrl-F), that may be a clue that the VI is saved without a diagram. It that's the case, you'll need to go back to a backup of the VI with the diagram in place. Even NI doesn't have tools to recreate a diagram from a VI that was saved without it.