I'm having the same problem starting today. Very disappointing indeed.
Samsung recommended a local technician to come in a check out the tv.
Were you able to resolve the problem? Any idea of the cost I should expect to incur to get it fixed?
Purchased three samsung 40" LCD three years ago and now two of the TV's won't turn on, just clicking,understand that capacitors are shot, very disappointed in Samsung, have two other Sony's in my home, one of which is 10 yrs old, no problems turning them on!!!! Please advise what you would recommend.