Toilets, Sinks, Showers, Tubs and Disposals - toilet drain problem, may be a simple answer

Hello all and thanks in advance for any help that you may be able to provide. I just bought a house and the ceiling in the garage has a wet spot on it. I have removed a 4ft by 4ft section and plan on removing all of the drywall that has been wet. Above were the wet spot in the drywall are two pvc pipes. One I assume to be the toilet drain and the other I assume is the vent. Whenever I get my wife to flush the toilet I can see a small drop come down the drain tube and then drip on the floor or were the wet spot in the drywall use to be. I can’t tell were the leak is coming from, but it looks like it is coming from somewhere close to the floor. My question is, would it be a safe bet to pull up the toilet and replace the wax ring? I am thinking that it is coming from a faulty wax ring or it is coming from the part were the flange goes into the drain pipe. Does anyone have any suggestions?

The flange and the wax ring would be a good start to figuring this out.Also you want to inspect the flooring around the flange for water damage etc.

Usually when the wax ring goes bad or the flange is damaged water comes out from underneath the toilet onto the bathroom floor.You problem suggests there is an ability for this water to pass through the floor to the pipe.That could be from rotting if this leakage has gone on for awhile.What can happen is the wax ring goes bad and leaks,the water accumulates under the toilet and causes floor damage.It could also be that there is an opening somewhere around the flange causing the leakage.

If anyone has "sealed" the bottom of the toilet to the floor with caulk that is a sign of this situation as it traps leaks under the toilet.

Thanks for your insight spdavid! I am going to attempt to pull up the toliet this weekend. This particular toliet isn't sealed to the floor. However, a different toliet is sealed to the floor with a clear sealant. I don't notice any drips until the toliet is flushed and it is a small drip or amount of water. It doesn't accumlate on the bathroom floor so maybe it is holding water in the floor like you said. I hope I don't have to replace the floor. I'll let you know how it goes and thanks again for your help!

Ok, I have pulled up the toilet. The floor hasn't rotted (thank God). One of the closet bolts was pushing against the black ring that is part of the wax seal. I think it was leaking around this closet bolt and running down the drain pipe. However, I am not sure if this is the case. I noticed that this part of the flange is bent upward and allows the closet bolt to move around freely. On the other side the closet bolt slides up and you can't move it. The side that I think the leak came from the flange is bent. I am not sure if:
1. I should just remove the flange and put in a new flange or
2. Put over the flange a repair flange so that the closet bolt won't be able to rock or move.
Any suggestions?