Oh, actually, it shouldn't exclude opengl! Just remove that from the exclude list, and it should work. I'll get this fixed for 0.10

What profile are you rendering with? Which platform is Unity set to?

This is due to the texture nodes using a feature that was new in 4.2

Neat!

Yes

This sounds like it's due to a secondary issue. Are you getting any errors in the console? Which Unity version are you on? Which OS are you running? Which SF version are you using?