I just had a look at wiki.winehq.org/Gecko because wine wouldn't recognize the installed Gecko package and noticed we missed the last two Gecko updates: wine-1.5.7 - wine-1.5.9: wine_gecko-1.6-x86.msi / wine_gecko-1.6-x86_64.msi wine-1.5.10 - current: wine_gecko-1.7-x86.msi / wine_gecko-1.7-x86_64.msi The GV variable needs an update in those ebuilds. While you're at it you could also bump to wine-1.5.11, it's already running fine here. :)
Ok, screw my famous last sentence, wine has been bumped already ofc. ;)