LabView wants to OverWrite VI's not changed

[mbone206]

Hi All

Hope some one can help with this LabView, possiblly need to understand compiler and why VI (possibly from Library) need to be saved when no change

I updated LabView this year... cut and paste some code from last year into
New Project FRC 2012... When hit save, ask to over write a lot of VI's

I hit yes, but I am not comftorable with this because I do not understand it...

Does anyone know why LabView does this?

Also, If I cut and paste or use last year code, and aks me to save library VIs, am I overwriting the 2012 library?

Appreciate Support
Mark