I am using CC PhotoShop, having a fresh install (CS6 PhotoShop was removed a month earlier). When I try to 'SAVE-AS' my files in .PNG, I get tiny, tiny files that are unuseable (for some reason, PhotoShop is now changing the resolution from very high res to extremely low res).
Another thing it has started doing is saving everything in .PSB filetypes, and (when I try to reopen them) it tells me the file it JUST created is NOT a PhotoSop format file. I went back and looked at my work for the past week and I cannot open any of it! HELP!!!!