Hi all, I installed OS X 10.5 Leopard originally using a 10.5 DVD. However, I ended up losing the DVD and so I bought a new one which turned out to be a 10.5.1 DVD. The problem is that under Optional Installs, you can normally "Upgrade" (i.e. reinstall) any drivers or applications that you installed previously. I want to do this, but because I am using the 10.5.1 DVD with an installation that was done originally with a 10.5 DVD, *all* of these boxes are grayed out, thus not allowing me to reinstall anything that was previously installed. I was wondering if anyone knew what file needed to be removed to tell OS X that, say, the Epson printer drivers are not installed. I removed the receipts file (/Library/Receipts/boms/com.apple.pkg.EpsonPrinterDrivers.bom) but that didn't seem to work. I know that the Gutenprint uninstaller has some way of doing this, but I'm not sure how they do it. Thanks much in advance.