Well, I do not mind that J River adds new features - I think so far they have done a very good job with MC11, although some features still seem under construction.
Just to mention one of the many things that happen:
About an hour ago I tested the buggy Library Server (getLibrary problem) that John had fixed in version 11.0.118. So I connected my notebook with my main pc and the connection worked flawlessly again. Then I did nothing on the notebook and MC11 was just being around idle as I worked on my main pc.
Then all of a sudden MC11 on the notebook crashed (displaying the Microsoft error screen). Nothing happened on MC11 on the main pc.
I restarted MC11 on the notebook and connected again. While I was working on something else, MC11 on the main PC (which was iconized) and did nothing suddenly crashed (displaying the Microsoft error screen).
So these are the things that happen very frequently.
On the other hand I think one crash was fixed today: When the thumbnails were in the process of being created on the content pane and I tried to delete some media library entry, then MC11 crashed. I have seen such a fix in 11.0.118, but haven't tested yet.
My main applications in the background are Zone Alarm Pro, a German Antivirus app called "Antivir Guard Personal Edition", QuickTime, Webshots, Nvidia Desktop Manager, VirtualDaemon Manager, Copernic DesktopSearch, Google Desktop Search - the last 3 having been added only recently. MC11 used to crash long before those 3 apps were being installed.
My main apps on the desktops are most of the time Office2003, Outlook2003, IE6 and MC11. I run AdAware and Spybot Search & Destroy from time to time (once a month or so).
I run Diskkeeper from Executive Software quite often.