random shutdowns

[barna]

Hi

My Toshiba Satellite A60 keeps shutting down randomly. The
/var/log/messages indicates to me that this might be a problem with
acpi:



May 29 11:35:31 localhost kernel: [4301918.411000]     ACPI-0284: ***
Error: Thread 1B91 cannot release Mutex [MUT1] acquired by thread 1A9F

May 29 11:35:31 localhost kernel: [4301918.411000]     ACPI-0508: ***
Error: Method execution failed [\_SB_.RDEC] (Node dbfd6540),
AE_AML_NOT_OWNER

May 29 11:35:31 localhost kernel: [4301918.411000]     ACPI-0508: ***
Error: Method execution failed [\_SB_.BAT1._BST] (Node dbfda460),
AE_AML_NOT_OWNER

May 29 11:35:31 localhost shutdown[9459]: shutting down for system
halt



Is this a known problem, and does anybody know how to overcome it
(without disabling acpi)?



thanks

Daniel


-- 
barna