I have gone crazy reading the countless threads of hundreds of pages each, so please if someone knows a definitive answer:

Can I connect to ad-hoc wifi networks using intel pro 2200 wireless card (iwi2200 driver) on leopard 10.5.1 ?
I installed the driver (rev 1195) fine and it seems to work, says it's associated to the ad-hoc cell, but never gets any IP address.
Setting IP manually doesn't work either. The same hardware/network/location works fine in linux.
I have control over the network so I can set it to either WEP or unsecure (tried both, neither works).
But I cannot make it a managed (access point) network.

Anyone know if I am wasting my time?

Thanks.