Visual SVN Icons only appear at Solution level

[Joint Contact]

Hi there;

Just installed Visual SVN and plan to use it on VSNET 2008.  Currently
running tortoise SVN 1.5.6.  Once installed all projects show a yellow
icon at the solution level but nothing at the file / folder level.

I also have VSS on my machine and am wondering if this is contributing
to the problem.

Thanks!