Coincidence? Paranoia? Virus?
Perhaps this is a statistically improbable, but sometimes-it-happens, no-reason-for-it anomaly. But for the record:
Within a two-hour period this evening, as we pack to head to the airport tomorrow, (1) my wife's HP laptop, running WinXP, suddenly froze while she was using it, and since then has been entirely unresponsive on repeated attempts to boot up; and then (2) exactly the same thing happened to my ThinkPad T60, running (sigh) Win Vista, which I have used for the past year strictly as a storage and backup machine, for photos and similar high-volume stuff. Identical symptoms: failure to boot, black screen on startup, not even any hard disk sound. (Exasperation with Vista, and with the craplets Lenovo has added to my long-beloved ThinkPad line, made me switch my working platform to Mac + VMWare Fusion running WinXP early last year.)
FWIW, MacMini and MacBook Air still chugging along. (This is not a product point, simply describing the situation.) And THANK HEAVEN for SugarSync, which has full backups of all four of our computers nestled safely in the Cloud. Time to finish that last bottle of Yanjing beer, Beijing's answer to REEB, and get ready for tomorrow's flight.