FP Will Not Accept JPEGS or GIFS

[Jim]

All of a sudden, Photo Gallery will not accept JPEG or
GIF images, even though all photos already in this
particularly photo gallery are JPEGS. I receive the
error message, "This format is not supported." Help!

 

[E. T. Culling]

Many of us have learned that you can't seem to add to a gallery. Save
yourself time and agony... start over.
Do you have the web open, not just the page?
ETC