Why does my Labview evaluation copy quickly expire?

[no_wires]

I recenlty purchased a couple of LabView books that contain an evaluation version of LabView 5.0 on CD. I load LabView on my computer, perform a few exercises with it and exit. Shorly thereafter, if I try to run it again I get a message saying the 30 day trial period has expired -- even though I've only had it on my computer for less than two hours.
Any recommendations on how to get around this?
Thanks for any feedback.

[JRA]

Check you system clocks to make sure that they're functioning correctly. I have heard of this issue before, although I've never actually seen it, and it was caused by a problem with the system clock on the machine.

[BrandonS]

There were two different versions of the LabVIEW 5.0 evaluation CD. The first release had this behavior and it was fixed in the second evauation version. There is a way to fix this problem. I would refer you to the following KnowledgeBase: http://digital.ni.com/public.nsf/websearch/576297C4DCD4FA28862567120079B1AC?OpenDocument