I have a 1.25GHz eMac (combo drive variant) that frequently shuts down seconds after being turned on. When it does boot, it goes to the Open Firmware screen. Occasionally, when first turning it on, the power light will flash a number of times and it will emit a "fog-horn" blare before getting to the normal start-up chime. This is the first problem I had with the computer since purchasing it last fall for my Grandfather. I have reset the PRAM a number of times, as well as "reset-NVRAM" and "reset-all" from Open Firmware. Are there are any other suggestions before I take it to the local Apple Store (it is under warranty). The eMac is currently running 10.3.8 although I was going to upgrade it to Tiger.