I can second an alpha bug, not sure if it is the same as I cant see the photos from the original post anymore.
You can see the bug on alpha body clothing pretty well:
See the LL DEV client on the left, top and stockings... skin is shining through colorwise. On Cool VL Viewer (right side) it's just shades of grey, no skin color visible.
My CV settings are attached.
Client version is v1.26.4.
OS Version: Microsoft Windows 7 64-bit Service Pack 1 (Build 7601)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce GTX 460/PCI/SSE2
Windows Graphics Driver Version: 8.17.0012.8562
OpenGL Version: 4.2.0