I've been using 1Password for a while now on my Mac at home, and on my iPhone. Works great. Last week, I downloaded the Windows version as a trial. I work on PCs at work, so I was hoping to use it at work. I am on Windows XP. I've noticed that it doesn't seem to work correctly for several sites. The problem appears to be that the password is put in the userid field (and not sure what in the password). I've seen this on Ebay and LinkedIn (that I can recall). I'm considering buying it for Windows but I'm not happy with the way it is working. I have verified that these sites work fine on Mac OSX. I am using Firefox on both platforms.