What version are you running?
1.6.9. It also happens in 1.7.0 alpha 0
What's the URL of the page containing the problem?
Any diff page
What steps will reproduce the problem?
1. Open the review comment dialog.
2. Click and drag the caption, any border, or the resize gripper
What is the expected output? What do you see instead?
Expected: The dialog is moved or resized.
Actual: Nothing happens.
What operating system are you using? What browser?
The bug happens in IE 9 on Win 7 and IE 10 on Win 8. It does not happen in Firefox 3.6.28.