Lambda the Ultimate

I've noticed that for me (Firefox 1.5.0.1 on Windows XP) when I use the back button on LtU, my browser doesn't remember how far up or down the page I was. It always resets to being at the top, which gets to be a little frustrating. It seems to work for me in general (I tried it out on other - non drupal - random sites). Dunno if it would be a drupal specific thing? Any suggestions / experiences would be appreciated, gracias.