A quick update and a further request for any ideas ....
Previous battery overcharged (by me..) .... subsequent to Battery change ... both windows automatically dropped completely open (and windows now not working), central lockimng not working (although hearing random 'locking/unlocking noises when engine running), power mirrors not working, indicators not working, rotary window de-mister/blower switch not working.
Thought it might be 'master' fuses (The red 50w and orange 40w) just to RHS of battery - checked, both OK.
Has anyone seen anything like this ? Possibly Relay related - all the above items apparently connected via Relay 'D' ?
Car otherwise starts/drives OK, no other issues yet that I have found.
If can't solve will need recommendation of reasonably local specialist (to Bucks/Berks) and a day when its not lashing down with rain !
Thanks all.