Sandra
Update.
In safe mode i was still unable to delete the old file.
However, while there I was able to simply move the "etc" folder into another folder, and then delete it from there.
I had previously copied all the other files in the "etc" folder into another folder, which i then renamed to "etc" and then placed in to the diver folder.
Having turned my pc back on in normal mode all seams to be working fine, and my browser also seams to work fine also.
I am currently running the Scan again using SpyBot Search & Destroy, and I'll let you (and others know) how I get on when I go to "fix problems".
Thanks again for your help , I would not have had a clue where to start.
All the best
Jon