I have a Packard Bell system using an ASUS motherboard P5VD2-NVM/S. The system came pre installed with 512MB RAM but I have now filled both banks with 1GB sticks (Kingston). The system applet only shows 1GB. When I run the Crucial scan, it sees 2x512 sicks! The report also says that I can install up to 4GB, I don't need that much. Do I need to upgrade my BIOS? If so, where can I get the download, I've searched everywhere! Any help is greatly appreciated.