just installed parallels and XP. added my 250GB external as a shared folder, and it worked great. i then had to reboot after installing some windows apps. finished loading xp. tried to open the shortcut to the 250GB on my desktop and got a password window with the title "Connect to *myname*3ada" It then says lower down "Connecting to .PSF" then a username selection box is greyed out with "*myname*3ADA\Guest" inside it and a blank password field what did i do?