Hi,
my n900 shuts down on its own randomly, once or twice a day. it's a mystery for me, as i never play with extra-devel apps or overclock.
it just happened now, i was listening to music with Mediabox this time, and it just went off. Other times it's simply in standby mode. I wonder whether anyone has suggestions. I ran dmesg, and I see this message before any (re)booting:

wl1251: 151 tx blocks at 0x3b788, 35 rx blocks at 0x3a780

Any clue? thanks a lot!