Back in April I had this same problem.
I was adviced in this post to download MD's Catalyst 12.6 which fix my problem, and everything worked great after that.
I recently updated to Photoshop CS6.1 (or 13.1) from the Creative Cloud and my shadows stopped working again.
The draggable shadows in 3D do not show up at all.
If I render my image the shadows appear.
Also If I turn on reflections, they show up just fine, but the shadows are still not there.
Is there anything wrong with my installation, or my settings?
My computer is an HP with:
- Windows 7 home premium
- 64 bit
- Intel i7 2.8 GHz processor
- 8 GB RAM
- AMD Radeon HD 6570 graphics card with 1GB DDR3 dedicated memory
Please let me know if ther is anything I can do to get these draggable shadows working again
Thanks!