vim + putty = "<F2>" instead of "/" using keypad

[Joao Clemente <jpcl@rnl.ist.utl.pt>]

Hi.
I wonder is someone faced this problem and actually knows a workaround 
for it... I googled but the answers I got didn't solved my problem:

When using putty to connect do a woody box, the '/' key abive the 
numeric keypad works perfectly... except inside vim. If used inside vim, 
I get a "<F2>" displayed every time I press that key...

Any workaround known? I have no ideia if this is a putty 
misconfiguration or vimrc missing something... It is stange that only 
happens inside vim (and if I use vim directly on that box keyboard it 
works fine)

Joao Clemente