Pictures In Attachments Not Open

I have windows vista only 1 year old It updates on schedule and virus and etc scans everyday and I have never had any problem until last week of opening my attachments even ones I send to family of family pictures, I have scanned my picture folder and no problems but in my emails after the emails come in and I go to open attachment, (and yes I know the ones I open are safe to) they will not open it just tells me there is no file, even on ones I have previouly sent out, now if I exit windows mail and then go back in I can open the attachments, in researching someone somewhere said certain emails with certain graphics, example they mentioned Kim Komando newsletters, would prevent you opening your own attach, I found this is true even with weather updates, pollen updates for allergys, and pillsbury newsletters and etc, anything with grapics