hi, I've tried fitting a 512Mb gecube radeon graphics card (same model from 2 different suppliers) and found it doesn't work in my pc. The pc seems to come on as normal (the optical drives open and there are no unusual beeps or other odd noises) but the power light on the monitor does not turn green. So basically no power is going to it. The spec of my computer is as follows: dell dimension 8200 (P4) - 3 years old dell CRT 2.8Ghz Processor 512Mb RDRAM generic dvd-rom generic dvd-rewriter freecom 320Gb external hdd netgear wireless access point AGP 4X (maximum) capacity 500W sparkle blue storm power supply agp aperture size set by system by default in BIOS: 128Mb BIOS version A09 (dell don't have anything later than this on their web site) there is a molex connector on the X1300 which I connected to the psu just to be absolutely sure the thing was getting enough juice I'm assured by everyone, everywhere that an 8X AGP card (any 8X card) is compatible with a 4X port and that if such a card isn't it won't even fit in the slot but I don't think this is entirely true. I think my case illustrates this. The card I use at present is a Radeon 9600XT which works fine. I've used the psu calculator http://www.extreme.outervision.com/index.jsp to work out what the power requirements would be with the X1300 in place with worked out to be 288W... ...but the monitor remains completely dead as soon as I put the X1300 in place. Several of us have scratched our heads trying to work out why it won't work. Any insights would be helpful. Thanks in advance. PS If anyone out there is a dell engineer and has any idea what's going on it would be great.