Lightning 1.7 Bug High CPU Rated 1 out of 5 stars

Upgraded from TB 14 and Lightning 1.6 to TB 15 and Lightning 1.7. Everytime I run TB, it freezes. Tried the same on Mac OS X 10.7.4 and Ubuntu 12.0. Disabled Lightning...everything works fine. When is this being fixed? Perhaps a new version for Lightning???

This review is for a previous version of the add-on (1.7). 

What kind of calendars do you have? This is not happening for me. Please contact me via email: mozilla at kewis dot ch.