Internet Woes

I haven't been to many blogs this week. I don't know if it is our computer, or what, but it is sooo frustrating! I can't get on to Tina's blog. I stay on it for like three seconds and then it boots me off. I can't leave a comment on Rebecca and Lorrie's blog. It says I need a Google Friend sign-up, and when I do that, it still won't let me comment. Some blogs won't open at all (they stall), and when I try to open a different blog, the current one which is stalled stays open and a different window opens. I have run a virus scan and have the current IE installed and running. Any ideas?