Hi, Can someone help please? I love my customized ringtones. When I was using my iphone4 version 4.2.1, I could assign specific customized ringtones to specific phone numbers and they worked like charm. After upgrading to ios5, they don't work anymore though I see the customized ringtones on my phone. If there s no one who can help me on this, is it advisable to downgrade to ios4 4.2.1? Thanks very much and any help would b much appreciated.