Hello again K,
Just to let you know I seemed to have fixed the problem but exactly how I did it I'm not sure ! This afternoon, just out of curiosity, I loaded a piece of freebie software called 'PC Booster' (bluesquad.co.uk) which came on a cover disk with a recently purchased magazine, Computer Shopper(I'm in the UK, I don't know if you have it over there??). Anyway, after running the software and rebooting I tried out some of my programs just to see if it had made any difference to performance (which it had!). I also tried CCleaner and lo and behold it was working as per normal again !
Alt