I'm using LV6i. I have created an entry for my user lib menu as submenu. After this I inserted some VIs. Then I save the changes in the "Edit controls and functions" dialog. The next time I want to change the user lib menu (inserting new functions) the dialog tells me "Error saving menu ... Please check read-only attibutes." I have administrator rights on my work computer, the attributes are ok... So do I need to set up the submenu from scratch (deleting the old one at first) just to add a new VI?
I was able to reproduce this problem in LabVIEW 6i, but LabVIEW 6.1 worked just fine when I tried the same steps. Apart from upgrading, I cannot think of another way to solve this issue.
I had the same problem until I upgraded to LabVIEW 6.0.2. This is a free upgrade that you can download from the NI site. Also, ensure that you are saving as a custom palette (mine is under the name Robert's Palette) instead of overwriting the standard palette. You should be able to edit your menu anytime you want and it becomes the default when it is in use and you exit LabVIEW.