Hi Tommyshen

From what you say, you have the 2007 version of PV Elite. I take that version runs successfully. When you say you successfully installed the software, we are not too clear to which software you are referring. Did you perhaps download the 2010 version of PV Elite from our website? If that is the case, the 2010 version will not run. Perhaps you could send me you ESL number. Please send an email to me at techsupport@coade.com stating the name of your company, and the ESL number.