Currently Being ModeratedOct 2, 2012 10:13 AM (in response to Florida 1953)
I had the same trouble...
When you click to add a new event, below Title, Location, Starts-Ends-Time Zone, Repeat, Alert, you'll see Calendar- click on Calendar...for me the invites only work when I click on the (yellow dot- Home) under iCloud.
It doesn't work with my gmail calendar.
Hope that helps....