I bought the Readeon 4350 and it worked instantly no problems. The dell does find it and does call it an "audio device" at first. Do not use the "wizard" to load the drivers. Just go into the "device manager" and "right click" the device and choose to install or update drivers. Then choose to load them from a location of your choice. Tell it to find the drivers on the driver disc that is loaded in your disc drive.
I can get online now and play WORLD OF TANKS no problem. And I'm running it at a very high quality. Very happy.
(Before putting in card) Turn on Dell. Press F2 at Blue DELL loading. Enter bios. Go to Video. Primary Video. Press enter. The video is set on AUTO. Set it to ONBOARD. (If you don't do this befor you put in the card your PC will be in conflict and the monitor will not turn on.) Now go to MY COMPUTER and RIGHT CLICK. CLICK MANAGE. Go to DEVICE MANAGER. DISABLE ONBOARD VIDEO. Power down. NOW Place card in. Power on. (Now you will go in and load the drivers for the card. Power down. Power up and enter the bios again and set it back to auto. Back out of the bios and SAVE. Swap the video cable. Reboot.)