I've downloaded the Silverlight beta 2 and attempted to install on Vista Ultimate 64. When running the exe I get the following error:
"The version of this file is not compatible with the version of windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program...."
I've checked all over the place and I can't find anywhere what system requirements there are for Silverlight Beta SDK 2.0. Is it 32 bit only? Will this change when it is released?