hi,i download photos from my digital camera unto my computer and then sent them via e-mail to friends and family.all of a sudden the e-mail doesn't work anymore for these photos !.can someone help me fix it,thanks

What do you mean doesnt work for the photos? Can you still send & receive mail without photos?

yes i can still send e-mail just not the photos that are downloaded on my comp.

When you attach them they send but the people on the other end cant see them?
If thats the case then the other end needs to check that they have their settings correct.
They need to go into tools/options and make sure the box is unticked as shown below.