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> i have vers. 5.01 of labview and there are more bugs? > there are other vers.?
You have a free patch to 5.0.1f1 available to you, but you might not really want to download it unless you know you're suffering from a bug that is corrected in the patch:
See a list of the changes in the README file that's linked there.
You could also formally upgrade to LabVIEW 5.1/5.1.1, which requires a small upgrade fee but delivers a fair amount of additional functionality, including a ton of additional mathematical functions: