I have returned to your post, as promised...

I've been in touch with my manufacturers, and they replied to me in a letter.

I have burnt it, so you can't have a copy.

However, this is what they wrote to me...

'Sir, We can assure you there are no faults in your production model. You seem to be working perfectly fine.
We have had reports of other faulty models however, who seem to have a design fault.. and as such run a program of 'projection.exe', blaming others for no reason.
It is an illogical and randomly activated program that appears to turn on and off, in roughly 30 day cycles.
These faulty models are named 'female', although some 'male' production units can also suffer from this technical fault..'

Some of our 'Male' production units, however seem not to be able recognize this random program when activated in their presence, so we are unable to obtain reliable data as to how widespread this design fault is.
We can say there appears to be a physical correlation with these male units.
(see attached photo underneath for model physical appearance type, at a recent ceremony..)

humph! I say,...

humph!