toshiba laptop(how to find model number)

hi,can any1 tell me how to find the model number,ive looked on the underside of the laptop,but doesnt state any numbers,letters etc
its a toshiba portege and the mouse is a little blue button,its between the letters g,h and b,if that helps any1,,,,,many thanks rabbit

try this sight for similarities, i guess...

h**p://uk.computers.toshiba-europe.com/cgi-bin/ToshibaCSG/jsp/home.do?service=UK

If you've already done that then your guess is good as mine.LOL