Frames fall apart when linked to another site

My website, www.users.bigpond.net.au/dc-computertutor has both a frame and non-frame version, both of which work ok.
When you use the link from http://davidcox.r-o-l.net to go to www.users.bigpond.net.au/dc-computertutor , the framed version doesn't work when you start clicking on the menu. Any suggestions?
Thankyou in advance,
David

In the page in your right frame of your http://davidcox.r-o-l.net site,
try changing the HTML code for the "Click here" link from:

<A&nbsp;class=menu&nbsp;href="http://www.users.bigpond.net.au/dc-computertutor"Target="main">Click&nbsp;here&nbsp;</A>

to:

<A&nbsp;class=menu&nbsp;href="http://www.users.bigpond.net.au/dc-computertutor"&nbsp;Target="_top">Click&nbsp;here</A>

Thank you very much Vernon. That worked. I am very impressed! I really appreciate you taking the time to look at my coding.
Thank you again!!!!!!!!!!!!!!!!!!!