My girlfriend has a Dell Dimension 2400 and we decided to upgrade the system with a DVD burner. I was able to get the side panel off the case but after that the system became a bit of a chinese puzzle. The frame seems to be riveted to the mounting hardware for the original drive and it obstructs access to the mounting screws. Giving up on this I decided to leave the original CD-Rom drive in the system unit but completely unplugged and move the cables to the new drive. I then found myself unable to install the new DVD drive into the other open drive bay because the front panel blocks prevents the drive from being slid in from the front. I kind of figured that the front panel is supposed to come off, but I am afraid to force it because I might break it. Does anyone out there have experience with this model of Dell (Dimension 2400)? We have some Dells at work, but they don't present nearly as many obstacles. They have obvious (and not so obvious) levers all over the place that make installing new hardware a literal snap. But not this puppy. I searched the Dell site but could not find any specific help for the system case.