I also agree with what faust and zapper have said. Your supposed to list all classes taken (even the W's) from all schools you've attended, and failure to do so is reason to terminate acceptance.
Here's a horror story for an example. I was talking with a transfer counselor one time, and she told me of this guy who transferred to UCLA with pretty a pretty decent gpa ( i think it was around 3.7 ). Any way, he went through the program there for Chemical Engineering and in his last semester, right before he graduated, they found out that he had taken a class at a different community college that he didn't report. He had withdrawn from the class a long time before, and since it was the only class he took at that school, and it wasn't a major requirement, he decided to leave it off his application. Despite the fact that he was about to graduate, and a really good student, they banned him from the school. And what's worse, is that they erased his transcripts and any record of him being there - meaning he couldn't use those classes anywhere else, he would have to start all over again at a different school.
I know this sounds like a made-up story used to scare kids to prevent them from doing what your considering, but I was talking to the counselor for a completely different reason, and that story just happened to come up. I don't believe she had any reason to lie to me. But I do know for sure that shools have ways of looking up student's histories, and they do so frequently during the application period.
On the other hand, one of my good friends went to ASU for a year, and flunked out. He went to a community college, and when he transferred he never mentioned ASU on his application. He got his degree without any problems, no one was the wiser.
Personally I think its risky. And like Zapper said, even if you do decide to "start over" how do you know that history won't repeat itself?