Anyone Know How to Fix iTunes Error -1450

Anyone out there know how to fix the “iTunes Library file could not be saved (error -1450)” that happens under windows? I’ve seen a couple of posts about it, but nothing useful, just a bunch of “realplayer rocks/sucks – itunes rocks/sucks” arguments. Nothing on the Apple support site either. I’ve removed/re-installed a few times, removed the My Music/iTunes folder, same result. This happens when I add a podcast. Help please!
Update Looks like you have to remove all mentions of itunes from the registry as well as doing an uninstall and pretty much remove every occurance of itunes anywhere on the system to make it work again. So far so good, keeping fingers crossed.