Thanks Kelly! This resolved my issue. Very odd that ArcMap would not allow the sign in prompt to load until 1st logging in on Internet Explorer. Thanks for the tip!
Vanessa,
Did you explicitly register your global ID with ArcGIS Online? You need to do this first. The reason you have to register is because when you do, you get a workspace with up to 2 GB of free storage where you can add GIS items. We don't allocate this space until you register.
To register, do this:
- From the ArcGIS.com website, click the Sign In link on the upper right.
- Click the Register your Esri Global Account link underneath Not a Member?
- Enter your Esri Global account user name and password and click Register.
- Read the terms of use and click the I Accept button to agree to the terms.
- Once you accept the terms of use, you are automatically signed in to ArcGIS.com.
Now, you should be able to sign in from ArcGIS Desktop.
Thanks,
Mike