[Have lost the new shadow feature in new update]

I have same problem with the new 2.7.4 viewer, but didn't in the earlier version. I am using ATI Radeon HD 4600 Series video card.

[When Viewer 2.8 comes out you will be happy again!]

Not sure yet. It has a different environment editor than before and works a totally new way. So don't know how to set my old windlight settings to work. =( But on the upside, I could once again crank my settings back up. With the 2.7.4, I couldn't turn on lights and shadow, because my scene would go total black! I was able to use ultra settings with lights and shadows with previous versions of Viewer 2. Now I could run those settings again with the beta viewer! Just need to figure out how to use the new environment dodad.