I just got some new Continental ExtremeContact DW's (245/40/17) installed today and it seems like the right rear tire is sticking out further than the left rear. Any idea what could be causing that?

I have some pictures to post, but I can't seem to get Picasa to work on here...

 

Check to make sure they are the same size first. Then make sure that the wheels are not changed with a front wheel on the rear.

 

Ha! Yes, the tires are the same size (unless there's a typo on the outside of the tire)and just the rear tires were changed, so no chance that there's a front wheels on the rear. Still not sure what the issue is...

 

alignment?

 

I went to the Honda dealership yesterday to see if anyone there could help. Three mechanics checked it out and were stumped, then a service writer pointed out that the bumper looks aligned correctly on the left side of the car, but not so much on the right side...He assumed it was a poorly fitting aftermarket bumper.
I bought the car used with ~15k on it and the carfax checked out fine, so I assumed that it wasn't in any accidents before I purchased it. I even e-mailed the first owner and he swore that it had never had any body work done to it (which I beleive, maybe naively). Is it possible the body panels were misaligned from the factory and I just noticed now?