Comment summary Disappears and embeds comments on page ?

I have a really bizarre scenario.

I have a number of users in my office who use adobe reader to sign invoices (with a jpg - not EchoSign)

We all are using a shared invoice on a network drive, so that when comments are added, they will appear in the comment summary.

Up until recently most people were using Reader 10.1.6 (or earlier) and the comments worked fine. Also when a signature was added to the invoice, this too would appear in the 'Comment Summary' when printed off.

Since the upgrade to 10.1.7 it appears that if comments are added to the invoice, they will appear as layered items on the invoice, and in the 'Comment Summary'

However, if there are comments on an invoice and then someone adds a signature it appears the following things happen:

1. When the user goes to save the file after adding a signature it adds '-signed' to the filename.
   1. This means that the user is no longer saving the invoice on to the original file on the network drive, and therefore the trail is lost.
      
2. When you save the file, existing comments become 'Embedded' into the invoice, and therefore the printing summary is emptied and our audit trail of who made which comments and when are lost. Additionally the signature is also embedded, and you cannot see which user added it (to detect whether someone is inserting another users signature image)

I'm certain that this is not the way the system is supposed to work, else what is the point of viewing the comment summary !!

The users are on a combination of Xp and Win7

I look forward to hearing any solutions or workarounds to this

Many thanks in advance