Thank you so much!!
I love my Eris too. Just bought mine less than thirty days ago and my sound rocker is MIA! Going down to get a new one, it just sucks all my apps will be gone and will have to dl them again... From what it looks like the only thing that held it on was some double sided wide tape, otherwise awesome phone.
Your OCD fears came true.. at least in my case..I can not locate my volume rocker... verizon can not order another.. and they are out of the back cover at their warehouse.. recommended that I call HTC and they said that losing the volume rocker "is just not a problem they encounter" and that if I send them my battery cover (and I guess just use the phone without it in the meantime) they "might" replace it, shipping at my expense but even then, that the battery cover is on back-order and they won't have any in stock for several weeks.
BTW, if they decide that the battery cover (only due to the volume rocker being missing) is not covered, the cost is ~38.00.
I'm going back to verizon tomorrow and see if they can do anything else, like order the cover directly from htc and I will just wait until it comes in.. or maybe send the cover back to HTC and use my blackberry in the meantime.. but that would involve changing data plans.. sigh.. no easy fix even under warranty...
How long have you been a VZW customer? Use that clout over them. My Eris was less than 30 days old so they just DOA'ed my old one and gave me a new one, but in the past (with my LG, BlackBerry, and my MoTo) just told them to give me a new one (because of some defect) and usually they did it. But it also depends on the store you go to. Some stores aren't that customer friendly while others like the Downtown Denver store or Cherry Creek VZW store will do just about anything to help you out. Hope you get a new rocker