Seems there is a bug snipping tool bug in windows 7 - freezes
I would disable the Snipping tool and then re-enable it.
Step 1: Click the Windows Start Button and click Control Panel
Step 2: Click Programs icon
Step 3: Click Turn Windows features on or off
Step 4: To disable un-check the box for Tablet PC Optional Components.
(This actually encompasses more than the Snipping tool)
Reboot.
Then using the same steps, now check the box for Tablet PC Optional Components.
Now see if you are still having the same problem with attaching to an email.
Hope this helps.
