I am working on a Dimension 3000 running Windows 7 Home Premium sp1 32 bit with 2 gb ram. It was badly infected so I reformatted it. All seemed fine for a day or two except the integrated ethernet port was not responding. I installed a pci 3com board. both of them showed up in device manager as good but neither one would light up upon connecting the cord. I then installed a usb network adapter and it works. But now, neither optical drive works. In control panel I show them but they will not read a cd or dvd.When I go into the bios and change the boot order for dvd boot it does not go there. It just boots into windows. The boot version is A01 and there is a boot version available ( A02 & A03) I even tried the F12 to manually select it with same results. The dvd worked fine on the re-install. The os is working fine and I am activated and have run all my window updates successfully. What am I missing? Thanks in advance.