I have my main site at http://slicedwebdesigns.com.au and have two test wordpress installs at http://slicedwebdesigns.com.au/test1 and http://slicedwebdesigns.com.au/test2 but there is a problem getting into my main site. It just displays a blank screen at http://slicedwebdesigns.com.au
I have since deleted the entire /test1 install as well as removing all .htaccess files from each directory, which I'm not sure if I should have done.
I think the problem was either coming from the bulletproof security plugin installed on the main site (might be unlikely though) or the s2member plugin installed on the /test1 site.
It seems the problems started after installing s2member.