Screen sharing should work fine using Retina display.
What is the exact display resolution which you are using ?
1680x1050 but it does not seem to matter, as I change it and the problem persists. On the other hand it does not happen on my second monitor (1920x1080).
Regarding the issue you reported:
- Adobe Connect
- Macbook Pro
- Sharing your desktop only shows the lower left quarter of the screen
I am a technical support analyst, and have a user who has reported this exact issue
Q: Were you able to resolve this issue? If so, could you share what you did to resolve it?