Can anyone help with a publishing problem I'm having with frontpage?

(I am aware I am fully in the "for dummies" knowledge base when it comes to web design etc so am sure it's probaly a really simple issue, anyway....)

After publishing my site to my hosting account myweb.com I can't find it when I go to it with my browser. I just get a blank white page, HOWEVER, when I publish to a specific address i.e. myweb.com/index I can then see the site on that specific page. what's going on?

thanks for any help out there