After 3 weeks with my 2nd DST-3000, it is showing the same exact problem as my 1st one. The cropped aspect ratio feature, when engaged causes the screen to flicker uncontrollably. My 1st one also did this after about 3 weeks of use. The strange thing is that it only has a problem with digital channels. If I use the cropped feature with an analog signal it works fine. I never watch analog stations but this problem is very strange. I would like to hear from other DST-3000 owners to see if they have the same problem. If I have had 2 units in succession that do this, I would have to think that someone else has a bad unit also. If you own a DST-3000, engage the cropped feature while viewing a digital channel that is being broadcast as a 4:3 image. Let me know if you have the same problem.