Problem in iphoto when editing, for example, cropping, the photo returns to the album and forever after looks a weird BLUE.

I crop almost every photo, so this is paralyzing my work! Overnight, it developed , but right after my husband installed a new hard drive.

When I crop, it works, but when I go back to the album, say, to look at the next photo, the one I just edited is a weird neon kind of blue all over.

HELP