I've just recently built my own computer the specs are as follows: MSI 845M MB, P4 1.7Ghz, 512MB RAM, ATI Radeon 7500 64MB DDR, 60GB HDD. Upon startup my monitor light goes from green to amber and I get no video, I also don't here the beep I would expect to here if my Vid card was not seated right or was faulty. This is also the first time this computer has been started, I checked how the ram and vid card were seated, seemed fine, I then check all cables and the CPU all seems well, acording to the motherboard manufacturer and ATI the video card is the right kind and should work. Could the problem be that my PSU is not strong enough? It's 300w. Thanks in advance.