Signature capture takes 25secs to open.

We've deployed Adobe 10.1.3 to a number of field force machines (Panasonic Toughbooks, XP SP3, 3G connected) and are receiving reports that opening the signature panel can take up to 25secs.
Adobe opens fine within a reasonable time, it's only when the user click the Sign feature (top right hand side).
Any thoughts on what could be causing the delay?
Thanks in advance
Lincoln

You may be correct. Just opened up a PDF on my home computer and it was almost instant and it was very quick to validate the signature as well.
I have the latest version on my home PC but the work one is an old version of adobe reader for sure. I will try tomorrow and let you know.

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