Shadows unable to turn on in 2.7 Beta, HELP!

[Sinister Vortex]

I just downloaded the 2.7 Beta and heres my issue:

1. In Pref>Graphics, everything is checked (except DOF), however Lightening & Shadows and Ambient Occlusion is greyed out.

2. Under Develop>Rendering, I choose the Object-Object Occlusion and even tho Lighting and  Shadows, Shadows, and Shadow smoothing is checked, its all greyed out.

 

No idea why in the last viewer I was able to use shadows and in this one I am unable to.  This is my system:

Intel® Core™ i5-460M Processor 2.53GHz with Turbo Boost Technology up to 2.80GHz
4GB DDR3 RAM
640GB (7200RPM) HD
ATI Mobility Radeon™ HD 5650 switchable graphics with 1024MB DDR3 with up to 2714MB total graphics memory

Help here!!

Thanks everyone! 

[Cerise Sorbet]

Hi, make sure that you turn on hardware skinning. It needs to be on for shadows to work, even though it is hiding over in the avatar section of the graphics panel. It is not turned on automatically on some ATI cards but it probably should be.

[Sinister Vortex]

Strange, while inworld It doesn't let me select it, but if I go into Preferences before I log in, I can check everything. 

However, the minute I go to log in, I crash. 

[Baloo Uriza]

Your switchable graphics have switched to the Intel graphics.  Try disabling switchable graphics and lock it into discrete graphics in the BIOS.  If you're on Linux, you absolutely must do this (use the "onboard" or "discrete" modes instead of "switchable") to get either graphics chipset to support their full feature set (thank Intel and AMD for not documenting this well).

[Sinister Vortex]

I double checked on that, but its always set on the ATI Radeon, and it won't change on its own unless I do it manually.

I just reverted back to 2.6 as thats the only viewer thats not crashing me constantly (although still does every now and then)