Hi.
My DC4800 also has developed the cracks you've mentioned! Not very noticeable, though. They seem more like scratches.
Anyway, I have a more serious problem with my camera. It has the lcd backlight broken. Kodak replaces it for $150. Does any knows where can I find a replacement part and for how much? The lcd itself is fine, only the light is broken.
I'm also thinking about replacing the broken backlight by an ELS sheet, if I can find any info about power consuption of the original backlight (the entire LCD frame has several "Sanyo"s engraved, but they don't reply to my mails!
Best regards.