Pics were loaded to SBcard on my ION and transferred into Photo Gallery.  In adding a pic, inadvertently the group I had just loaded/transferred is now lost.  Photo Gallery is only going to "link new pics and I can't locate the 140 slides I transferred.   They should still be on the SBcard but PG will only take pics that had not yet been downloaded   Why won't that allow me to?  Would they be lost somewhere on my computer if it won't allow me to download them over again?