Eric,
the error occurred first yesterday after installing the latest dot releases of Cookies Toolkit, Security Assist, DataAssist, Site Import and CSS Menu Writer. At the same time I also installed the latest version of DMX Zone's Lightbox Extension (1.0.3)
I did not suffer a "crash" during install but as ever it was very slow.
I certainly would have used this functionality in the last week though I couldn't be specific as to which day.