A friend of mine uses Lr 3.x on his WIn 7 (64 bit) machine - no problems.
Your problem sounds more like a corrupt monitor profile, Gene - trying setting your monitor to sRGB, open Lr and see whether the thumbs etc. are visible again.
A friend of mine uses Lr 3.x on his WIn 7 (64 bit) machine - no problems.
Your problem sounds more like a corrupt monitor profile, Gene - trying setting your monitor to sRGB, open Lr and see whether the thumbs etc. are visible again.