Every time I try to connect LabVIEW with the NXT, LabVIEW crashes... I have LabVIEW 2010 and 2011 and it was working before I installed 2011. Can be that my issue?
Have you installed the LabVIEW NXT Module 2011 yet? At what point does it crash when attempting to connect? Is there any error report that comes up when LabVIEW crashes?