If you're using Zone Alarm firewall software, beware that it is somewhat troublesome when running AHII Beta 13 on-line for the first time. When zone alarm pops up, it freezes AHII but hides the mouse cursor (at least in WinXP Pro). I had to use ctrl-alt-del to bring up Task Manager, then select Zone Alarm from the list of applications and then click on "Switch to". At that point, I was able to access the Zone Alarm buttons I needed to tell it to allow AHII to access the internet, after checking the box to not ask me again for AHII.
BTW, AHII will not allow me to alt-tab out of it to access other programs running concurently with AHII. The AHII screen freezes, but does not minimze to show the Windows desktop.