About an hour after coming on shift I noticed something in the CR air and put on my mask, but after a while it was clear that that didn't help, so I started looking for other things, and realized it sort of smelled like burnt plastic.  Called Corey, Richard, Dave, and a couple other people.  Turned off most of the CR computers (about 4 warm ones), checked the MSR, checked the Computer user's room, and the smell was only in the CR.  Tried to contact Robert, waited, but then turned off his computer, and am now waiting to see if that computer was overheating, and if turning it off clears up the air.

Currently watching H1 from the Computer Users Room, and have Verbal Alarms running in here.