Hello community, since a few weeks, I have this annoying, intermittent problem where the MBP freezes. The Beach Ball appears on whatever application I happen to be using for a minute or so, then it resumes operation as if nothing happened. Sometimes only the frontmost application freezes, sometimes the whole machine freezes. I had a look at the Activity Monitor: no CPU or RAM overload in sight, fans spinning quietly. HDD is rather full, but has about 200GB free, so shouldn't be an issue. Looked at the Console also: when those intermittent freezes happen, nothing is written in it. Most annoying is that there seem to be no particular pattern: at times it would freeze every 10 min, sometimes wouldn't for hours. What could be going wrong? Any idea how to track down the source of the issue?