Hi foxone,
I'm pretty new to LabVIEW, so I hope what I'm saying here isn't completely wrong.
1. Could you please post your VI? Then I could have a look on it and it would be clearer for me to understand what exactly isn't working as it should be.
2. Yes, just right-click on your control and select "reinitialize with default value" (or something similar, I'm working here with the German version of LabVIEW).
Regards, Niko