I have a box that contains 3 light switches. I replaced the old switches with new ones simply for cosmetic reasons. The old panel worked perfectly fine. When I install the new switches everything is fine. However, when I compress them all into the box and make everything nice and tidy, it trips the breaker. Is something rubbing in there? Does the proximity have something to do with my problem?
Sounds like you have skinned a hot wire that is touching the metal box or one of the ground wires. With the power off pull the switches and look for a burned spot. If the wire is still ok not damaged from shorting it can be taped with a quality electrical tape. If the wire is damaged you will want to cut it and pigtail a new piece. This happens even to professionals.