I was getting REALLY annoyed with QB and the jerkiness of scrolling and typing on PMs. Then I got a script error this morning. This is the only site I have problems with. I am running Firefox 14.0.1 on a fairly new laptop with Windows 7. I did a search on the script error I got and one of the solutions was to install YesScript as an add-on to Firefox. After installation, I added QB to the list to block any scripts from running that I think are coming from advertising on the site. So far, QB seems to be acting normally with no scrolling or script issues.