Please provide ipconfig information for each computer.
Start - Run - "cmd". Type "ipconfig /all >c:\ipconfig.txt" into the command
window - Open c:\ipconfig.txt in Notepad, copy and paste into your next post.
Identify operating system with each ipconfig listing.
On any XP Pro computer, check to see if Simple File Sharing (Control Panel -
Folder Options - View - Advanced settings) is enabled or disabled. With XP Pro,
you need to have the SFS settings properly set on each computer.
With XP Pro, if SFS is disabled, check the Local Security Policy (Control Panel
- Administrative Tools). Under Local Policies - Security Options, look at
"Network access: Sharing and security model", and ensure it's set to "Classic -
local users authenticate as themselves".
With XP Pro, if you set the Local Security Policy to "Guest only", make sure
that the Guest account is enabled, and has an identical, non-blank, password on
all computers. If "Classic", setup and use a common account with identical,
non-blank, password on all computers.
On XP Home, or for XP Pro with Simple File Sharing enabled, make sure that the
Guest account is enabled, with identical, non-blank passwords, on each computer.
And Michael, please don't contribute to the spread and success of email address
mining viruses. Learn to munge your email address properly, to keep yourself a
bit safer when posting to open forums. Protect yourself and the rest of the
internet - never post your address unmunged.
Paranoia comes from experience - and is not necessarily a bad thing.