If you try to cancel image insertion, you're stuck
Steps to reproduce the problem:
1. Click the Image toolbar button to insert an image
2. Click the Browse Server button to browse for an image on the server
3. When the FCKEditor - Resource Browser window appears, just close it using the X button, without selecting an image
4. Your IE6 browser hangs
NOTE: The problem does not appear if you select an image from the server and insert it in your editor.
Also, the problem doesn't appear with IE7.
Steps to reproduce the problem:
1. Click the Image toolbar button to insert an image
2. Click the Browse Server button to browse for an image on the server
3. When the FCKEditor - Resource Browser window appears, just close it using the X button, without selecting an image
4. Your IE6 browser hangs
NOTE: The problem does not appear if you select an image from the server and insert it in your editor.
Also, the problem doesn't appear with IE7.