Basecamp will not load after updating Lifetime Maps on Drive 60LM

I updated the Lifetime Maps on my Drive 60LM for the first time last night. The maps were designated to load on both the Drive 60LM and my PC. The updated maps appeared on the GPS, but when I went to load Basecamp, it would not load. I double-clicked the exe file to go direct instead of using a desktop shortcut. The HDD drive on the PC flickered for a few seconds, then nothing. Using Win 7 Pro, all updates current. Anyone else having this problem? I wanted to ask before I downloaded and installed Basecamp again.

If I reinstall BC, should I uninstall the older version first?