Hi Ed,
All plugins are up to date and WooCommerce is activated. Please see the following problems on my site when WooCommerce is activated (this happens ONLY when WC is activated):

On home page (www.shiftdialog.com/test):
• drop down menu disappears from main nav (should be under “Change the World” link)
• design elements not working:
– % bars (see home page bottom, right side, under “interesting stats”)
– circles around phone/pencil/bolt/eye icons (just under the slider)
• posts don’t aggregate (home page bottom, left side)
• toggles break (home page bottom, middle)

Many thanks for your help. I will be needing WooCommerce, so I hope we can fix this.
ShiftDialog