Tool Gun bugs?

alright, Garry’s Mod is right now one of my favorite games, but all of a sudden my tool gun started having “bugs”. No matter what tool, the gun does not let me use it on anything but props, npcs, ragdolls etc. I cannot use it on walls, floors, ceilings, you get the point. I have searched numerous times on the internet, but so far ive gotten no answers. So here’s the big question:

WHO KNOWS WHAT TO DO?

uh, well, heh, i think it may be something messed up with your gmod try reinstalling it. if that doesn’t work it may be some addons interfering with your tool guns (probably not).