Mr Bob,
Sounds like we are running very similar installations (AHP 3.204 and XP/SP2). I have encountered "lock-ups" before, but only when I've been doing some rather mean, nasty things to the interface (stress testing an such).
Unfortunately, we'll need more information about your installed devices and AHP configuration before we can make an educated guess about what is happening in your case.
- Number and type of devices installed
- Do other switches function correctly
- Repeaters or phase couplers installed
- Macros in use
- A post from your activity monitor when the interface/AHP locks up (view by accessing the menu item /tools/Activity Monitor - or press "F2").
If you could also try a test file with only the offending switch loaded, it would help isolate the problem.
- Create a new house file : /File/New name of your choice.
- Create the offending switch in New Room 1 and assign it's address
- Save the AHP file : /File/Save - Test1 10-28-07
- Try activating your switch manually - let us know the results
Sorry for the long list of questions. I'm trying not to send you on a wild goose chase by guessing at solutions.
Boiler