I've been having a issue with ToneFX Pro. My problem is only with custom ringtones. My custom email and text tones all work as intended. The custom ringtones I choose end up playing the default and custom tone chosen at the same time when receiving a call. I've double checked my settings and the custom ringtones are set per contact using ToneFX, with default for all non-custom contacts. I do not use the iPhone settings page at all to set ringtones. I am running a Verizon iPhone 4 on iOS version 4.2.8. Thanks for the help, I emailed the developer but they haven't responded at all.