Strange X10 Lamp module problem

[Art Todesco <actodesco@xxxxxxxxx>]

Here a new one on me.  I have used X10 in my house since it came out and
have never seen this.  I have 2 lamp modules plugged into the same
outlet strip.  One is a stock lamp module, the other is a lamp module,
but with the solid state relay modification found on a few on-line
sites.  It has worked perfectly for some time.  So this modification
actually makes it a silent appliance module.  But, it's still a lamp
module at heart, only the output is a little different.  The are both
set to B1.  The SSR modified module has 2 lamps (w/CFLs) connected to
it, hence the SSR.   The other one has a heated warming blanket.  Last
night, both were on and all of a sudden, both just shut down by
themselves ... this is not the strange part.  After, neither would
respond to any X10 commands.  I only used a wireless remote with
transceiver for testing.  I probably should have tried a direct X10
command from a manual controller, but I don't think that would have made
a difference.  And I never touched the transceiver, only the wireless
remote.  At first I blamed the modification, as I hadn't noticed that
the unmodified module was also off,  But then I discovered it too was
off and wouldn't respond either.  After powering down bother modules and
re-powering, they now both work perfectly!   I haven't a clue as to what
could have caused this problem.  It had to be some "command" or pseudo
command (noise?).  There are only 2 houses on the outside transformer.
And, we are pretty far from any neighbors making it difficult to get
rogue RF transmissions, i.e. lots in the subdivision are 3 - 4 acres.
And the one neighbor on the same transformer doesn't have or even know
what X10 is.  Any ideas??