I'm playing a rogue, I passed a perception check and found a trap but disarm is greyed out. Clicking my thieves tools on the trap does nothing. Clicking the trap my character just says, "I can't see any way to disarm it." Also , object highlighting doesn't seem to work. I hold alt (or in my case tab because I switched the alt and tab keys around) and nothing is highlighted. The characters keep passing perception checks and saying.. "ooh, that's interesting" but I have no idea what they might be seeing because nothing is highlighted.