Problems with my blogs url

I'm having strange problems with a url for a blog I've set up. The home address is fine:
http://www.edu-hq.com/blog/
but if you click on any of the posts it drops the www. For example:
http://edu-hq.com/blog/the-ins-and-outs-of-experiential-learning/

Would this cause problems with search engines etc? How can I fix this? Please help, I'm going nuts.

 

When you set this up - what URL did you enter as the base URL?

 

the straight http://edu-hq.com/blog was probably the base URL I'd say. How can I fix this up?

 

Are you using wordpress?
Try to set your url in options-general.

 

Thanks, that fixed it. I'm such a frickin idiot!