can't get google

[jeremysmith]

Whenever I try to access google I get a timed out message and the site never loads. I've obviously got some nasty sh1te on my system from one of their competitors which is blocking this site. I've tried using Spybot to remove it but alas to no avail. I'm sure this must be a common problem, anyone had a similar problem that they've fixed?? I'd be very grateful to learn how to do it.