I use Netscape8.1.2 on a Dell Latitude X1 laptop running WindowsXP. Spyware blaster 3.5.1 tells me that MozillaFirefox is not installed. Removing & reinstalling both programs doesn't help. I have the same programs on two Dell desktops, both running WindowsXP -- no problems with MozillaFirefox & Spyware Blaster. Any ideas? P.S. The registry.dat file in my profile is 1 KB.