Hello. Last night, I upgraded my mid-2012 CMBP (purchased in June) from Lion to Mountain Lion, via download & install from the App Store. I did not do the recommended Software Update prior to installing ML. Will I have any problems? It had the version of Lion that shipped with the computer in June. If it matters, I never installed any software or downloaded/transferred any files since I bought it. I've only used it a few times and only browsed the internet. It's literally been collecting dust for the past few months. Thanks.