MonoDevelop Error Underlinings for *.js

Hey guys,

my old computer crashed and i freshly installed unity 4.5.1 on my new one. but now my monodevelop 4.0.1 doesn't show me any error or warning underlinings in my .js files. i checked the options and under "markes and rulers" error underlining is activated. Also i updated all unity add-ins and tried to use xamarin instead of 4.0.1, but nothing helped.

(in xamarin i can't find the unityscript language binding add-in (?))

it seems that .c# files work fine. is there a way to fix this manually? i wrote my complete code in .js and it is for my bachelor thesis.

thx Mike