dock/cradle causes ringtone change?

[insuranceguy]

I recently SBF'd to .602 GB then updated to .605, and then rooted. Phone works great with the exception that everytime I place the phone into either my car dock OR the HDMI cradle, the phone ringtone changes to a song I have on my phone (a particulary offensive song no less!). No matter how many times I change the ringtone back to a normal ringtone, after docking, it changes back to the "bad" ringtone........

Anyone ever hear of this?