Not clear on how you are saving raw to jpeg in Bridge. Did you use image processor?
If you double click on image in Bridge what happens?
Sorry I was mistaken, I opened up the raw files in camera raw, did some editing then clicked on 'save image' and saved them all to jpegs. Now only some of them open in camera raw first even though they are a jpeg. It makes batch editing a nightmare as it opens in camera raw on some and I have to hit 'open image' for it to go back to cs5 and continue the batch edit.
I'm not quite sure of your workflow, but here's a couple of things to try:
1. Make sure the folder to be batch processed contains only JPEGs.
2. In Bridge, go to Camera Raw Preferences (not Bridge Preferences) and change JPEG and TIFF Handling to Disable JPEG support. This should ensure that all JPEGs open directly in Photoshop.