I saw this old thread pop back up today due to a spammer and thought "what irony and timing"!
Its a useful tip and should have been a good conversation starter that just never took off I guess. The problems caused still pop up with regularity any way.
If you are having frequent problems, submitting a log file via the support tab can help narrow in on the cause.
For me it has most often been related to a few specific plug ins. Some from the included bundle, some not. I had some trouble for a while and chose to stick to 32 bit plugs in 32 bit MX for quite some time. Many of the problems kept consistently narrowing in on some old, free and inexpensive plugs I was using to be honest.
When some desired tools required 64 bit I began to migrate. But found I was having some intermittent new problems at I suspected were from bridging 32 bit plug ins. So I chose to move to all 64, which while not perfect, has reduced previous problems to a minimum.
Still, most issues I have experienced seem to be plug in related in some way. Some is surely plug in code, and there is likely room for some improvement in MX's handling of plug in code variations.
All in all, I'd say the best improvement for me came from migrating away from free/inexpensive/bundled plugs published like.... Ten plus years ago?
Note, I am not saying there arent good free/inexpensive plugs, I use some! But at the same time, some of this (especially older) stuff has consistently been at the core of problems I have had.
Right now, things run pretty smoothly for me. Knock on wood!