[PD] asio4all not loading

[Justin Robert]

Hi.
I just reinstalled win XP pro on my desktop(P4, Realtec AC97 pd-extended 
0.39.3) When I go to select asio in the pd media menu the pop up doesn't 
give me the option to select asio4all. No drivers show up at all. Standard 
MMIO works fine, and asio4all is working fine in cubase.
I use the same setup on my laptop, except there is sigmatel audio card 
onboard and it works there. Does anyone have any ideas as to why asio4all 
isn't showing up for me?
Any help would be much appreciated.
Thanks,
Justin Robert