Using 10.2.5 on TiBook and BigAl, but much more extensive usage on BigAl for obvious reasons. I have NOT seen this problem under .2.5, but I did see it under earlier revs on the TiBook (500 Mhz). My theory, as it didn't happen all the time, was that it was linked to one of the two batteries I use with that model -- battery got older and had its voltage fluctuate badly enough that it swooped right past the warning and went straight to sleep. This would make some sense that this problem would appear commonly in early rev TiBooks, and less frequently the newer the laptop gets. So on this theory, the guy who's got the problem on his BigAl probably has a clunker battery. Just a thought, no further data to provide. Best, Jeff ----- Today on <http://www.jeffporten.com>: The Six Myths of Gulf War II US Announces Invasion of US Menschenhawks