We have the following situation that I'm not sure is normal:

A User would open a Email that has been stored in the repository, If they select Forward or Reply on that email, a second Email window is opened that they can then type in the recipient address and send the email. the original Email window is then closed and the user is prompted with adding version comments, almost indicating that there was a change to the original mail, which in fact there was not. 

For some users they are presented with a box looking like the one below and they can select to Discard changes and the block will disappear and the system does not register that a change has been made to the email. 

For other users, they are presented with the below box, but are unable to click on Cancel, as it just brings the box back for capturing a comment even though there was actually no change made to the email:

so there is 2 questions from this:

1. Is the different boxes related to the difference in MS Office? I checked the LF Client versions and these are the same. 

2. Why in the second scenario can the user not click on cancel?

The problem that this is causing for us is that if the user is forced to capture a Version remark, this is then registered as a change on the document that then starts a WF due to the change on the entry which should not.