HT5219 Why is there a cursor lag when painting Photoshop on the Thunderbolt Display when conected to my MacBook Pro?

When painting or using the cursor in Photoshop 6 there is a marked cursor lag, can anyone suggest any fixes?

Hi JanStran,
You may need to check your Display settings and/or resolution.
The article below explains how to used Clamshell mode "closed display" on your Macbook Pro, versus "mirroring."
Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display
Hope this information helps ...
- Judy

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