I had a minor glitch with my two month old I7 iMac. Once in a great while it would not boot to the point where I saw the apple on the screen and I'd have to turn the machine on and off repeatedly until it would boot. This happened to me three times in three months. But, hey, it happened frequently with my windoze machines... 
Anyway, I called applecare this past Sunday and we went through about everything you could over the phone, including the full suite of keystroke resets.
It was suggested I get an appointment at the nearest apple store...got one the next day, yesterday, and brought the machine in. The techs wrestled with it for a few minutes, and since we could not duplicate the problem, they decided to replace my iMac with a brand new one. I was asked if that would be okay. Yeah, I had to think about it for a millisecond.
I was told it would take about an hour to migrate my hard drive's contents over to the new machine,. so I went to get lunch. I waited a few minutes when I got back to the store and then, voila! My new iMac was ready to go.
I'm thinking to myself, "If I had bought Dell or HP, I'd still be talking to someone in India who didn't speak English well, over a lousy internet phone line, and whose help was limited to reading off a script."
You gotta be crazy to not buy apple.
Oh...no screen anomalies on the new machine...so far.
Now, if only apple had resolution independence implemented...

Anyway, I called applecare this past Sunday and we went through about everything you could over the phone, including the full suite of keystroke resets.
It was suggested I get an appointment at the nearest apple store...got one the next day, yesterday, and brought the machine in. The techs wrestled with it for a few minutes, and since we could not duplicate the problem, they decided to replace my iMac with a brand new one. I was asked if that would be okay. Yeah, I had to think about it for a millisecond.
I was told it would take about an hour to migrate my hard drive's contents over to the new machine,. so I went to get lunch. I waited a few minutes when I got back to the store and then, voila! My new iMac was ready to go.
I'm thinking to myself, "If I had bought Dell or HP, I'd still be talking to someone in India who didn't speak English well, over a lousy internet phone line, and whose help was limited to reading off a script."
You gotta be crazy to not buy apple.
Oh...no screen anomalies on the new machine...so far.
Now, if only apple had resolution independence implemented...