I did setup a subdomain on another hosting using A record "the main domain on server and the subdomain on another server".
Then I installed a blog on this subdomain successfully and everything is fine.
then I installed a plugin to get content from yahoo answers and youtube every x hours.
but it didn't work, it works and add posts only when I opened wp-admin page "http://subdomain.domain.com/wp-admin/".
I've another blogs on this server using this plugin and it's working fine.
I'm using wordpress 3.0
and this is plugins I've installed:
All in One SEO Pack
Auto Content plugin
Google XML Sitemaps
Missed Scheduled
WordPress Related Posts
WP-PageNavi
WP No Category Base
if you need cpanel and ftp login to check this problem, let me know,