I really need some help or direction (aside from sending the camera in for repair).  I own this Nikon D90 for several years.  Yesterday, I have not been able to power on.  I did the obvious things such as checking my batteries if they are fully charged; clean the battery compartment, the contacts, etc. but no signs of life.  I do not use wired remote, or GPS.  I search the existing forum for leads but with no success.  If you have any experience relating to this problem, I would really appreciate some help.  Thank you in advance.  Hsu94583
			
			