OS X V10.7 Lion :: Show In Finder In Every App

I have this weird and annoying problem with "show in finder".I used at one point that "defaults write -g NSFileViewer string different.plist.than.finder" to try to change the default finder, it didnt work, so I just "defaults delete -g NSFileViewer". So this is out of the way, I have no NSFileViewer in any file whatsoever.Now, for the weird stuff. If I use "show in finder" from the dock, nothing happens(neither cmd-click, of course). If I use it in safari's download list, it OPENS the file. If I use it in iTunes, on media or apps, it WORKS properly, it shows the item in the finder. If I use it in Xcode on a file in my project, it just switches to that file(so, basically, it just opens it just like Safari). 

I tried deleting the dock and finder plist files in Preferences, didnt work. If I login with a different account it works properly. I really dont want to delete the whole preferences folder. I REALLY dont xD.I'm really stuck here, since all apps try and open the file(except Dock that does nothing) but iTunes works properly.if I use "Reveal in finder" in Spotify, it also opens the file(it starts to play in iTunes).if I use "Reveal in finder" in Forklift it just opens it as well.

Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.2)