I had the conexant BT878 driver working on Windows7 with dual boot from Vista. Both were 32 bit. I decided to go from IDE to SATA drive using ghost. The clone went bad and when it formatted the IDE drive, I lost everything. I did a new install of Windows 7 32 bit on the SATA drive and now I can't get the Conexant driver to install. It will install audio bit I don't have audio on the cameras but it always has to intall 4 of them along with 4 Multimedia Video Controllers. Multimedia Video Controller, it just says: “Windows found driver software for your device but encountered an error while attempting to install it. the system cannot find the file specified. “ it has 4 yellow question marks beside all of them in device manager. How do I fix this. I really need to get the security cameras running asap. Thanks, fencepost