I recently purchased a 42v525 dlp[ tv.Ive heard about problems with thge lamps,so i looked and sure enough it needed to be replaced.So i replaced with a brand new osram lamp.Now when i turn on the set i get picture and sound for about a minute then both the picture and sound dissapear for about 30 seconds.The power led is solid when the pic and sound are on then it blinks when i loose for the 30 seconds.The set will continue to do this for as long as the set is powered up..Isw this a ballast problem..or power board or...???Please help me,this is an awesome set