7.3 - Install from CD "Version Mismatch"

Hello All, I just installed a clean version of 7.3, "Default Install". Whenever I go to "update software" in Yast2 I get an error saying that "The SuSE release number on CD 1 differs from the number found on your hard disk. Please insert the CD 1 that matches the release on your Hard Disk..." etc. What gives? This is the only release CD I've used. This is frustrating the heck out me, to say the least. How can I fix this? I'm also curious if I can switch to a network install from SuSE's ftp update servers, to avoid all this nonsense if my CD's are somehow to blame. Is this possible? I did purchase the 7.3 Pro version, but if I can't update it from the install CD, major bummer. Peter