The fact that nobody else is experiencing an issue means that the problem is your machine. I'd try uninstalling and reinstalling - if you did it from DVD, try copying the install files to a local temp folder and install from there - there were issues reported from DVD installs sometimes. Make sure that you're a local Admin and that you've given yourself full rights to your own C:\ drive.
Does RH always crash with the unhandled exception or does it just freeze and you have to kill it using task manager? I'm thinking if it only freezes, maybe your dialog boxes fell off the screen and you can use the following process to get them back.
1. Perform an action that will freeze RH, like File > Open or Insert > Image.
2. Press Alt, then spacebar, then M.
3. Press any arrow key.
4. Waggle the mouse. The missing dialog box should snap to the cursor.
5. Click to drop the dialog box where you want it.
How do I stop my dialogue boxes from showing up off screen like this? I find this highly annoying. Do I need to update windows or RH?
Just be careful when using multiple screens that you bring everything back to the main screen before disconnecting.