Bad file path for plugins

Hi,

I’ve set up my shiny new WP blog, and have posting working ok, and themes, and media uploads (via the browser route, anyway), but there are a bunch of errors when I try to do certain other tasks such as deleting plugins.

When I try to delete the Hello, Dolly plugin, I get the following errors:

Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(/tmp//1244642684) is not within the allowed path(s): (/home/www/www.example.uk.com) in /home/www/www.example.uk.com/htdocs/blog/wp-includes/functions.php on line 1924

Warning: touch() [function.touch]: open_basedir restriction in effect. File(/tmp/1244642684) is not within the allowed path(s): (/home/www/www.example.uk.com) in /home/www/www.example.uk.com/htdocs/blog/wp-admin/includes/file.php on line 174

Warning: fileowner() [function.fileowner]: open_basedir restriction in effect. File(/tmp/1244642684) is not within the allowed path(s): (/home/www/www.example.uk.com) in /home/www/www.example.uk.com/htdocs/blog/wp-admin/includes/file.php on line 628

Warning: unlink() [function.unlink]: open_basedir restriction in effect. File(/tmp/1244642684) is not within the allowed path(s): (/home/www/www.example.uk.com) in /home/www/www.example.uk.com/htdocs/blog/wp-admin/includes/file.php on line 630

It seems to me that the file path here is nonsense – ‘/home/www/’ and then the rest of the address, and that I just need to change a setting so it can find the right path. I’ve tried all day though, and can’t find the setting that needs to be changed anywhere. Any ideas anyone?

TIA