Thank you so much for taking the time to make those changes to my test applications. I am really looking for two types of functionality. First the ability to just view one form at once modally. This is no problem. Next is the ability to have many forms open at once displaying different information from different VIs. This isnt a problem but forintance subform1.vi ran the whole time it seemed to slow down execution. Therefore I am worried that if I always keep the VIs I want to open at the same time running that it will bog down my execution speed. Next, in the implemetation you revised I lost the ability to have both forms open at once. Now when I use event driven programming this took care of the speed issue, similar to your use of case statements (with elimited button polling) but again only one window open at a time.
I guess in summary I am looking for the most efficent way possible to have multiple forms open at once and have non choppy VI execution.
