BUG REPORT - mysql warning

[Imagine]

VM Nightlybuild 1270

PHP gebouwd op:  Windows NT PBCONCEP-1EF365 5.1 build 2600 
Database versie:  4.1.14-nt 
Database collatie:  utf8_general_ci 
PHP versie:  4.4.4 
Webserver:  Apache/2.0.54 (Win32) PHP/4.4.4 
Webserver naar PHP interface:  apache2handler 
Joomla! versie:  Joomla! 1.5.1 DutchJoomla! Production/Stable [ Seenu ] 8-February-2008 22:00 GMT 
User Agent:  Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30) 

I get the following message after a fresh install

Warning: mysql_real_escape_string() expects parameter 2 to be resource, integer given in W:\www\Joomla15Virtuemart11\libraries\joomla\database\database\mysql.php on line 193