Hello All,
Because I did the 'Self-Cal', it wiped out the rest of my "Trial Version". Rigol was kind enough to send me another copy, now that TIME is out. Sorry for the confusion.
The Key Gen NUMBER that I input to the Rigol DS2000 displays "License is Unavailable" and after the 3rd try it displays try again after 30 seconds.
Will try some of the other suggestions
Thanks
Or just buy it