My son is 2 and a half years old. He's been on Cingular for a little over 3 months. Prior to being on Cingular he had only had one ear infection his entire life. Since Singular, he's had 4 ear infections. I consulted the Singular website and it noted ear infections as a side effect. He has also started waking up in the middle of the night in horrid rage. My husband and I have to stand back and wait for the destruction to end since we don't think he's truly awake-- not about to punish him for that. I didn't realize it until reading these posts but we've been noticing something evil natured growing in what was a very sweet boy. We thought it was just his age but now I'm not so sure... Time to get our angel back!