Thanks for the link evilowl thats a very usefull app
I'm pretty computer savvy so know what I shouldn't be deleting just didn't know where to look in the reg there just way to may branches to look through one by one.
top of the pile was
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyServer = 64.110.74.244:8080
promtly deleted now to see if it comes back and to work out how it got there