So about a week or two ago my custom ringtones began unassigning themselves from my contacts. I have about twenty or so I guess and I noticed one day when it rang that it was my default ringtone (also a custom made one) and not the custom one it should have been. I went to my address book and discovered all of my contacts were set to "default". I assumed something glitched during my last backup and began reassigning them but next thing I know all of a sudden my contacts go blank and then slowly show back up again like it's redownloading from the server. All of the ringtones I had just changed were all set back to default again. After trying this two more times I gave up and let it alone for a week. Today I set one and left it awhile to see what would happen. It kept the ringtone so I started to go through and set everyone again and about the fourth or fifth one into it the address book began redownloading again. Is there a setting that has somehow got changed? I googled a little and found some people with MobileMe who complained of this happening but I don't have MobileMe I just use the Exchange setup to sync my contacts. Help??