All usb connections turn off data connection

Everytime i plug my htc touch diamond into a usb plug whether it is a charger computer usb or usb headphones my data connection is turning off. I am using Mighty rom victor and have shakass theme installed also s2u2 v2.34 and muns backround for every page weatherdatabase updater. i am trying to use a web radio player but everytime i plug headphones in i lose my connection it is getting really frustrating if there is anyone outh there that can help me out this would be much appreciated