Comment 2 for bug 469016

My laptop just freezes all the time with Ubuntu 9.10.The crash is almost random but most of the times, few minutes after the boot.
Sometimes just freezes at boot.A black screen with only a blinking cursor(line).Must press the power button.
Most of the times boot fast and run fast for few minutes(5-10) and then the screen become darker (not black but just like changing the brightness to very dark) and in the same time the computer freezes for few seconds and after that will return to normal(but now the computer is slower).After 2-3 cycles like these my computer freeze and I only can move the mouse(but can't click).I must press the power to restart or turn off.
I see the bug report notification most of the times when I use the live CD.But only once I was able to send this report.The computer freezes when is trying to collect information for this bug.(Network manager,internet,wireless all out of order too)
Hope makes sense.Sorry for me english :)