I have never had problems opening jpg attachments. however, i just replaced my modem and upgraded to a docsis 3.0....I am not sure it is related, but suddenly after my new modem was activated by my cable company, it takes forever, if not longer, to open a jpg attachment. I can open them easily from my folder of jpgs, but emailed jpgs are a different story...it would seem like the problem should not be related to getting a new cable modem. any ideas? very co-incidental.