Working Enviroment.
Joomla 1.5.23
Virtuemart 2.0 SVN revision 3511 (last update 6/16/2011 2:41PM)
Steps:
After reset all tables and get sample data proceed to Products in Control panel change Display number to 5, and click on page 2 link.
Bug: All products dissapear. And you have to logout and login from joomla to see them again.
***SOLVED***
MILBO thank you .