NAV System...HELP !

[hemby6400]

I have had my H3 for two years, bought it new....Love it !!

Has anyone suddenly had there NAV LCD screen just go dark ?

I went to set clock the other day, clock setting was complete and suddenly screen started to flicker...this went on for a while and then it went dark and non-responsive.

All radio functions work......But, radio is worthless without screen to see channels, NAV, Config, etc....

Sure would appreciate any thoughts.....Just seems that two years and not heavy use would have the LCD go bad this soon ...

Thanks