I have a Dell Studio 1458, in which I just replaced the HDD with a compatible SSD.  After reinstalling Windows 7, I could no longer connect to the internet.  I used the driver disk to install drivers, but it says that all of the chipset and network drivers are installed.  

When I troubleshoot, it says that "Windows did not detect a properly installed network adapter"

When I look under devices, I get an "!" next to Ethernet controller, network controller, PCI Simple communications controller, and Unknown device.   I've looked everywhere for drivers/solutions.  Any ideas what went wrong here?