@cjay:
Deep breath now. We'll take this a step at a time. Don't worry.
Does anyone have any experience with this HW/SW arrangement (for which there is NO manual) that it actually performs as configured?
It was my first set up at the start of September. Worked very well. We'll go over issues one at a time.
Since the installation, I've seen macros run with no module response; AHP try to dim an appliance module, I thought that was strange; but after being awakened several times a night for a couple nights in a row by the bedroom lamps coming on by modules that had no ON config - I was furious
These are all definitely strange and unexpected issues. You have 3.271, and 3.296 is now available. I would first start by updating to the latest software build available on the X10 website:
http://www.x10.com/support/support_soft1.htmJust download the one that says "ActiveHome Pro". It will automatically update any plug-ins you already have installed. No need to run any separate installers.
After the update, make sure that all your modules are individually controllable through AHP (On/Off, etc).
Make sure that if you have deleted any Macros or Timers recently, that you empty the Recycle/Trash bin at the bottom left of AHP. Some timers and macros have been known to still remain active until the bin is emptied.
I would also ask what House Code (A-P) you have your TM751 and modules set to. Since you mention that you have a CM19A, there would be at least one TM751 Transceiver (the one with the antenna of course) in your setup.
Does it require any weird work-arounds to behave correctly? What about the download vs PC option?
Shouldn't require anything special. As far as the Download vs. PC option, the CM19A has no internal memory of it's own, so it will require having the PC on to send commands and keep timers/macros running. Even if you select "Store In Interface", it will make no difference. Only a CM15A will enable you to properly download Timers and Macros to have those run with the PC off.
Note that if you decide to use any of the Cellphone Web Apps, those require you to have the computer on as well.
I hope this helps. Let us know how it goes for you!