Uploaded Documents stays with old Demo server link

Hi all,
I'm using sitefinity 4.0.1098.0 and today I saw on my site uploaded files' links work with my old test server. For example When I reach my site www.mysite.com and when I bring mouse over a document link it shows bottom like: 10.0.0.6/docs/uns/asdfasdf.pdf not the www.mysite.com/docs/uns/asdfasdf.pdf and 10.0.0.6 was my local server which installed Sitefinity first. 
Please can anyone tell me how to fix problem.
Thanks