Physical memory dump without warning.

-----Original Message-----
Computer w home edition XP shows a full page of info
including: "A problem has been detected and windows has
been shut down to prevent damage to your computer.
DRIVER_IRQL_NOT_LESS_OR_EQUAL. If this is the first time
you've seen this stop error screen, restart your
computer. If this screen appears again, follow these
steps:........ Technical Information:
***STOP:0x0000000D1
(0xF96FAF59,0x00000002,0x00000000,0xF96FAF59)
***ALCXWDM.SYS -Address F96FAF59 base at F96C9000,
DateStamp 3b28910a ***ALCXWDM.SYS -Address F96FAF59
base at F96C9000, DateStamp 3b28910a Beginning dump of
physical memory Dumping physical memory to disk: 57"
When the physical dump has been completed, the computer
restarts.
.
First uncheck the option for "automatically restart"
which is in system properties, advanced tab, startup and
recovery settings button. But to do this re-boot into the
safe mode so that the bad driver will not load and cause
that stop code error. Then find out which device driver
that file; alcxwdm.sys is from, and update the driver.