Notebook hangs on battery mode

Hello I need help wit my installation,

Notebook Toshiba Tecra M11-107, OpenSUSE 11.4 x86 64

Everything works fine but when i unplug AC power cord notebook hangs. I tried to start kernel with ACPI=OFF mode, with this option notebook runs on battery mode without problems but my icon on task bar remain same as for AC power mode.

Here is the kernel info:
uname -r
2.6.37.6-0.7-desktop

Is there any way how to repair it. I need different acpi or another type of OpenSUSE distribution ?

Thanks for any hint.