Does anyone still have, in DP7, the problem with Mail where the application is hitting hard on the CPU and the hard drive/SSD, constantly working as the Activity window shows it. Also, Mail often has problems to fetch new mail. You have to quit it and relaunch it to see the last mail suddenly appear. In both case it happens on several Mac from different people but we all use Google accounts. The first problem was already there in DP1. ( see also this thread).