A Potential Cause of Sudden Gleeches & Beeches
Some of the recent (not necessarily latest) Microsoft security and anti-hacking hot-fixes have been playing havoc with machine speeds. Q811393 is (I think) the number of one that I had to uninstall off both a Win2K and a Win XP Pro machine as they super-stalled and hung up all ops within Explorer.
Just now having similar issues within Nero trying to create Data CD's.
The various forums have details of these latest Microslop inlet unstarts.