And yet it definitely IS in use. I have typed the address in and got the real estate website.
Have you tried clearing down cookies and temp internet files? Are you having trouble accessing any other sites?
Also try running full spyware/adware scans and antivirus.
Don't forget to make sure you can remember all your passwords for sites etc. as deleting the cookies might stop auto logins to pw protected sites working.
See if any of that helps. If the spyware/adware scans come up with anything note the names and put them up here.
Good luck and happy hunting!
Matt