I'm not a computer person and wouldn't have the first clue how to change browsers if I wanted to
I do however know that I use Internet Explorer.
I again went into the advanced search, typed in back+sciatic into the advanced search box left everything else the was it is, clicked enter and still got 1,000 resultes.
Sorry, but I don't really know what else to tell you other than did you also try
a google search?
Or Back+sciatic:site healthboards.com