I've opened the samples solution under VS 2008, and upgraded the solution. When I compiled the first time I got several LNK errors, which the FAQ topic says it is related to the bitness, which this first time was on x86 and my machine is x64. I changed the compiler target to x64, and added brook.lib to the dependencies, but now when I try to compile, the option is deactivated. When I return to x86, the green triangle activates. Do you know a workaround?