popups and shizzle

ive had some malware which started with just popups and got worse. my net only 'half' works.. like, half of the sites just wont load. ive tried a few like google and myspace and they dont load, also tried my mates website and random stuff like that. sometimes google works and sometimes it doesnt :S i had a go at fixing this problem my self but it failed i guess

i ran combofix and that seem to get rid of the popup problem but my net is still messed up. its the same with every browser

done antispyware scans etc
edit: still getting the occasional popup so my comp isnt clean