If on external drive this will add to permission problems.

If so, right click on Bridge icon and choose "run as administrator".  If this works you have a permission problem.

I didn't see "run as an admin" as an option when I right-clicked the Bridge

 

icon, is there another way to access that?

 

That is probably a 'Windows only' feature.

You did not report what version of Bridge you are using.

First check if the folder you are working in is not locked (choose folder in finder and use cmd+i)

And try a check and repair permissions using Apple Disk Utility.

And if no luck also try restart Bridge holding down option key and chose reset preferences.

Can you do any operatons like adding a keyword, stars, or labels?

So this is only an issue with moving raw files, you can move and rename a jpeg?

If so, it kind of narrows it down to specirfics with moving and renaming raw files, which Omke can steer you right on, hopefullly.

Alas, I just found a jpeg I can't move.

There are two things to try also.

Don't know if you have cached a lot of files already but personally I would manual dump the Cache file for Bridge and also the second option, dump the plist file for bridge.

You have to cache the files again but that takes only a bit of time, depending on amount and file size.

Also you have to go to the user library that by default is hidden in 10.7. I'm still on 10.6 but there are a lot of solutions on Google to retrieve the user library.

Quit Bridge (and for safety all other CS Suite apps.)

in the user library preferences folder find the Bridge  (still not clear what version you are using?) plist file but for CS5 that is Bridge version 4 (com.adobe.bridge4.plist) and manual drag to the trash.

Then in the same library caches folder go to Adobe/BridgeCS5 / and in here delete both the cache folder and plug in to the trash.

Again run check and repair permissions on your Mac and then restart Bridge again with option key and again reset preferences.

Yes, you have to recreate the custom settings but that is only a few minutes, al your saved workspaces and keyword list are still in place and workspace reset gets your saved workspaces back (only without the UI colors, but those are also easy to recreate)