My D5000 has decided it wont let me pre set the white balance. From new I would use an expodisk to set the white balance but on a recent outing with the camera club it wouldn't cooperate and gave a message that it couldnt do it. Has anyone had a similar experience and how did they fix it. The reason behind wanting to fix it is i would like to have the camera converted to infrored and being able to preset the white balance is then important.