Ok, now I'm confused. This is what the proofing menu looks like:
go to "custom" (headmost entry).
Device: your monitor profile (in my image it's: "CH_fuji_matt_0309")
render. int.: relative colourmetric
BPC: activate (useless here but anyway)
(viewing options at the bottom: deactivate both)
[attachment=13927:proof.jpg]