Same thing happened to my cube. I have almost the same config, in the cube. Could it be the heat from the Seagate? Anyway, I've found turning off the Cube including the power supply for a bit, usually brings the brightness control back. But only for a while, a few days later, it disappears. There's an application to dim the screen manually, I forget what it's called. Brightness control? Anyway, look in versiontracker.com and you'll find it. I use it sometimes in place of the cube's brightness control. On 4/10/04 10:39 PM, "Leif Joel Örell" <lejo at mac.com> wrote: > Hi Cube List, > > My brightens-control has disappeared! > When I open System-Preferences/Screen the there are no scale fore > brightness at he bottom of the page as b4 and when I touch the > brightness button on my screen it lights up but noting more is > happening. It used to open the System-Preferences/Screen page. > > I have a Cube G4 450, ATI Rage128Pro/16MB, 1GB Ram, 80GB Seagate > Barracuda with a 17" Apple Studio Display. (LCD) > > Any Ideas? > > Joel > >