After color conversion, my volume switch is non-responsive?

A few days ago I completed a color conversion on my white CDMA iPhone 4. I turned it on, and I thought everything had gone perfectly. However, this morning when I tried to put my phone on silent, I realized that when I switched the silent/volume switch down to silent, the little bell with the line through it did not show up on the screen. It’s not responsive at all. I’ve tried restarting the phone several times. Do you think that it’s just something that’s either a) damaged by the conversion or b) just slightly plugged in wrong and can totally be fixed. To be perfectly clear, the volume rocker still works (I can raise and lower the volume just fine), it's only the switch that takes the phone from ringer to silent that isn't working. The headphone jack works too.

Any help is greatly appreciated!!!!!