Hi. I have a MBP from 2011 (4GB of RAM, Intel i5 2.4GHz, Intel IGP 5000 graphics) Im having a serious slowdown problem recently, and was wondering if the RAM was the issue? Could this be it, or do I need to be looking into another source of the problem (Maybe need to clean the inside, etc.)? Will 8GB of RAM make a significant difference? Things like Word and the Office Suite take 2+ minutes to launch, logins are painstakingly slow, and startup is painstakingly slow. However, once it's been on for awhile (45mins-1h) it works fine. No slowdown, apps launch within 30secs of clicking, etc.) Help!