Graphics Problems with the radeon 9700 pro

ok ive recently bought a radeon 9700 pro. Ive installed it in to my computer (however i used the floppy drive connector to connect to the graphics card - the technician at the shop i bought it from suggested this and said it was fine as i didnt have another cable) Once connected, i boot my pc up. On the Packard Bell grey screen which appears i notice some strange white lines on the screen. I also noticed some discolouration on the windows loading screen. When i do get in to windows half of my screen has a shade of yellow running through it. Also i get some dodgey pink colours at times. Also, my desktop has blue vertical lines going down it. This obviously isnt normal hehe . Now, ive come to the conclusion that it could be 3 things : either a faulty graphics card (i bought it new) a broken motherboard (seems to work with other graphics cards) or a not powerful enough power supply. The one i use at the moment uses 280w. Does anyone know what the problem could be, and how i could go about fixing it? thanks for anyhelp you give me. zoohook.

p.s i have tried formatting my computer - the problem is still the same.

 

the psu is weak but should be fine for windows work when its not under load


take it back to the shop and get them to test it for u

 

hmm i bought it from www.overclockers.co.uk so its kind of hard to take it back from the shop. Id rather try and manage the problem myself m8

 

rma it - it's dieing a horrible, multicoloured death.

I recently got a 9700pro from retek and while 2d was fine, 3d locked the pooter up, after displaying masses of artifacts over the screen for half a second. Sent it back, got another one and it's right as rain now.