freebsd stable - Aug 2003 - Wi0 11Mbps ??????

Hi there.
Some know how make work a prism 2.5  on Freebsd 5.1 on 11Mbps ,  work 
perfect on 5.0 but I couldn;t make it work on 11 Mbps on 5.1
this is a bug??
thankx

-- 

Marcos Biscaysaqu

Systems Administrator
ThePacific.Net Ltd.