Help Please ! ! ! before I tear out what little hair I have left

Running all standard Windows XP on home PC with (supposedly) all the good protection - Norton antivirus & Adaware (both of which I have run & deleted all sus stuff)
Problem is :-
All of a sudden I'll get all these windows flashing up on the screen, jumping about like popcorn on a hot flame, opening stuff, shutting stuff, hiding stuff, exposing stuff, on-an-on till it finally gives up leaving umpteen open windows for me to close down before finding out its (sometimes) deleted what stuff ive just done.
GGrrrrr.... what with no Ferkin wind

; insurance companies insisting car replacement cheques MUST be mailed out ("Yes sir, sorry sir, even over Easter sir, it is the only way it can be done sir" then when you finish telling them, nicely of course, that whilst you had hoped to have a car for Easter of course you understand they finish off the call with the corporate phone etiquette phrase-of-the-day "thankyou for your call sir & we hope you have a very pleasant Easter" - Aaaaaaaahhhhh )

; bladders leaking in my 11M

; nicotine withdrawals [}:)] messin with my head big time AND getting emails from my son tellin me what a great time he's having skiing in Banff ............
Really! how much can a koala bear

ANYHOW (sorry for the digression

but I think sharing it helped) - Ive worked out Ctrl/Alt/Delete stops it in its tracks but only to retreat, regroup & attack again after some purely random interval.
ANYONE ? please ? what the f..'s going on & how can I stop it

HINT - dont know if its related but start up screen is telling me "4 programs running" when I KNOW there is only "two" ...hhmmmm thats suss?
PS : isnt it interesting that when things become difficult to 'bear' we respond with 'Grrrrr'

Oh Gawd I think I really am going mad
Think I better go and bleach my strings

ha ha hahha what a crack-up.
Dont u just love this forum - always something to make you laff - even from the bottom of the hole