Power problem

i recently got myself a IDE plexWriter and now when i shutdown my computer, the power deosn’t turn off by itself anymore.
It doesn’t even display the message, ‘your computer is now safe to turn off’.

the same thing happens when i try to restart my computer.

i am using win2k

everything was working fine before i installed the burner.

any suggestions

thanks in advance

check in your system properties the advanced powermanagement