I just installed VirtualBox from the Lubuntu Repositiories, and now, when I click Start>Accessories>VirtualBox... nothing The machine continues to remain nominal.

Did I install this incorrectly? I most certainly was not indicated so.

How can I run VirtualBox so I can begin learning Slackware?

Unacceptable solutions include, but are most certainly not limited to: Just install Slackware alongside of your Lubuntu 64-bit partition.

Thank you for your time, consideration, help, and love.