Installation Videolab Hd

I am trying to install Videolab HD on a laptop. Everuthing seems to go OK, but when I try to open Videolab HD I get the following message: "the certificate file is missing or has been corrupted please reinstal-it". I ahev allready tried to suppress clan everithing and re-install. But I get allways the same message ane cannont open. Info: The version of Roxio Videolab HD I have bought had been downloaded . It had been allready installed 6 months ago on a desktop computer whithout any issue, but I now want to use it on my laptop for more convenience. Thank you for help.