Since I have installed Avast Antivirus 4.1 when I go to a web page it takes such a long time to come up. I can no longer search using metacrawler.com when I type in a web page and press enter nothing happens.
What can I do?
I hardly think this is avasts fault. try disabling the standard shield and seeif that helps
ia mawitch - you did not give any imformation about your computer … such as OS, firewall, IE version, etc. 
These things will help to give you a better answer to your problem. 
Hi, If you have a really slow connection 19.2k or 38.8k then it could be Avast. If it’s downloading a program update and your connection is a little limp, data flow for other internet apps will slow to a crawl. It could take quite a while for the download so you probably get sick of it within a few minutes and shut it all down. Am I close?
Check if it’s performing a program update, otherwise it could be a LOT of things! What processes do you have running?