Turned Comments on - error invalid file reference for default_blogger.png

Hi
We installed EasyBlog last week and all running well. Configurations, navigation, layout has now been established and working well.

We are taking the next step now and turning the comments feature on. Any blog article with comments turned on has the following error ono the article page ... everything is public so comments are for guests. There is no registration part.
Warning: is_file() [function.is-file]: open_basedir restriction in effect. File(D:\Inetpub\vhosts\philocapital.com.au\httpdocs\images\easyblog_avatar\http:\http://www.philocapital.com.au\components\com_easyblog\assets\images\default_blogger.png) is not within the allowed path(s): (D:\Inetpub\vhosts\philocapital.com.au\httpdocs\;C:\Windows\Temp\) in D:\Inetpub\vhosts\philocapital.com.au\httpdocs\libraries\joomla\filesystem\file.php on line 523

What to do?

regards, mark