Sadly not, but i have discovered the next level!
You know how if you press the rolly thing you get a little white icon and you can move the mouse to set it scrolling? do that and then leave the mouse scrolling the page into infinity... Go for a brew and by the time you get back you'll have at least five miles of ukBouldering - Extreme mouse action!
I am very disappointed that you guys can't get this to work, I can only assume that this means my mouse is vastly superior in all ways! both my desktop at home and at work do it and are XP pro (SP1) with IE 6.0.2800.1106. Because I am a geek I have tested it on NT4 with IE 5.5 sp2 and it doesn't work, also IE4 sp1.
I don't think you should fix it, rather if you could make it happen in all browser versions that would be splendid. Then everyone can join in.