I just bought my new MacBook Pro Retina 13'' (mid). Today is my first working day with the new rMBP and it is(/was) quite annoying. Two finger scrolling is every 10th time not working. It sometimes even freezes my tabs in Safari. More annoying is the reading of PDFs in preview. It happens very often that I can't scroll anymore for some seconds. Do you have the same problems? Is it my trackpad or is it due to Mavs? Edit: Apparently fixed the problem by putting the sroll bars on gerneral settings on "always". Found the hint in some other forum. So it should be a software problem. Does anyone else have it?