I have a question. My ex-wife has an LG CU500 and downloaded the Magnum, P.I. ringtone. Since it is cool, I attempted to download it for my Samsung Sync, but was told that no such ringtone exists. When I switch to the LC CU500 the ringtone is available. It is also not available to the v3xx or KRZR. Why is an mp3 ringtone available for 1 phone on AT&T but not the others?