Issues with Outlook default account and performance

[radleymartinez]

A few weeks ago my Outlook 2016 started acting weird. Always before my Outlook opened right to my gmail account and showed my inbox. Now when I open Outlook, the Outlook Data File opens first, and of course, there is nothing in it.

So I have to click off the Data File triangle and click on my gmail triangle, then click on the inbox to see my emails. More often than not, the Outlook says (Not responding) and I have to wait a minute or so to the email.

I tried making gmail the default, but the "black checkmark" will not move off of Outlook Data File to my gmail account under Account Settings.

Any ideas?

Thanks.