I couldn't resist picking up a Powermac G4 Graphite locally, as I wanted a computer which I could run OS 9 on natively and this particular one came up with a good price. This particular computer is a Powermac 3,4 with a single 533mhz processor. The graphics card is(I think) the stock GE Force2 MX with 32mb VRAM. I had a 17" studio display stuck back in the closet, and had initially planned to use it with this computer. The last time I had it out(about a month ago) it worked great with my Powermac G5-I just don't use it with that computer as I've moved to bigger displays for it. Just to be sure, I plugged it into the G5 again yesterday, and it still seems to work fine. When I plug this display into the ADC port on the G4, the computer will not start up. I sometimes get the "happy mac" chime, and sometimes not, but in either case I will then get a single, sustained beep that continues until I shut off the computer. I now have the computer connected to the same 22" display I'm using with my G5 by way of the VGA port on the graphics card, and everything works great. I plan to set up the computer at another location rather than right next to my G5, so how I have it set up now is not a problem. Locating another display is not really a problem(I can find all the 17" LCDs I want by dumpster diving) but would really like to use the Apple display if I can. Does anyone have any thoughts as to where the problem might be in this particular combination of components I'm using?