just installed a new version of threads 7.2.2

however all I get is a blank page when going to the url.

the CP is fine, and the config is being updated etc.

I have done all the usual bits, like re-uploading files, checking permissions, installing a new default style and making that default etc...

URL to forum is http://www.canvey.com/forum

Same server as my other forum, so no issues there, and permissions are set fine on the domain.

Any thoughts, as it has me stumped?