Paidpnuts:

I guess that depends on how the question is asked on your application. Based on my understanding of what you are saying:

"Have you ever been charged with DUI" - that seems like you would have to answer yes.
"Have you ever been CONVICTED of DUI" - that seems like you could answer no.

That being said, you should be able to get a copy of your motor vehicle history and be able to see exactly what it says.