I have 3 PCs running WINXP. Recently, all three of them will ask for a username's password when none has been assigned. The only way to logon is to shutdown and restart. Then I can click on the username with no password and logon successfully. I have other usernames that do have passwords and when entering them, I get the same result..."Did you forget your password?". Nope, I haven't forgotten it and even have reminders in case I do. I've never seen this problem before and can't find any info regarding it on the internet. As you can imagine, this is quite annoying and irratating. Please advise.