If it was clicking you would hear it very clearly. I am on 7.01, but it was clicking on 7.0 as well.

I don't know if it happened on 6.5 as well, I was more concerned about the stuttering at that point. I'll see if I can remember to install 6.5 on a virtual machine somewhere tomorrow and see if that makes a difference.
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Remind me to change my signature to something more interesting someday