IBM Netvista "Wake-Up" Problem... PLEASE HELP!

[SleepyGuy]

Hi. At work i'm reconfiguring some IBM Netvista PC's. Everything is going well but once the power savings go on the monitor dims and the machines green light blinks on and off. That's not the problem... moving the mouse doesn't get the system back on or press keys on the keyboard. The only way is to press the power button... yeah that's right... the power button. I know users that walk away from their desk will get annoyed with this problem so is there anyway to fix this? Thanks.