Hope this hasn't been reported before - don't have time to search right now:
1) Multiple select a group of photos
2) Right click, select 'Rename'
3) Set your options in the Batch Rename dialogue that appears next (in this case includes the prompt to enter a new name) and click 'OK'
4) Next dialogue is 'Enter Description - Renaming Files'.....
At this point it is NOT possible to go back, cancel or even close ANY cam2pc window. If you previously made a mistake i.e chose the wrong photos, you are committed to either continue regardless, or close cam2pc using Windows Task Manager.
Simple to correct this I suspect...over to you Nabocorp.
Regards,
Jeremy