Force SharePoint Application Deployment

I had a trial install of Nintex Forms 2010 on my test SharePoint 2010 Server.  I wanted to go back to the original interface to verify that modifying forms via Infopath was only possible via Enterprise, not Standard edition.  So I worked through the uninstall pdf found at Nintex Connect.  After confirming that it's not available on Standard Edition I went to reinstall Forms.  Evidently there was something I missed on the uninstall because when I attempted to deploy the nintexforms2010.wsp (System Settings --> Manage Farm Solutions) I received the error "Nintex forms feature has already been installed in this farm."  It also listed the ID number.  To force the deployment I used the SharePoint 2010 Management Shell and ran this command:

stsadm -o deploysolution -name nintexforms2010.wsp -allcontenturls -immediate -allowgacdeployment -force

I'm able to continue the installation from step 1.3 according to the Installation & User Guide also found on Nintex Connect.