Hi,
My first thought was that your D50 might be due a firmware update, but this Nikon service link shows not
http://support.nikontech.com/cgi-bin...chor-DSLR-3800
It's an odd thing, not had it before. sorry i can't be of further help.....I hoping one of our Nikon gurus on here might be able to offer help.
The place I might try is nikonian's website forum, but it might take a bit of trawling through to see if anyone else had this issue?
http://www.nikonians.org/forums/dcboard.php