does it show the GPUs in the list once it starts running?
it should show all the possible mining targets that it is setup for, so if you had 2 gpus it should show those on the list (in my experience anyway).
I had an issue where I had to rerun the aticonfig command once I added more GPUs or it would not recognize them. Mine does not allow me to mine on the CPU however, so I don't know any more than that currently
if i write: cgminer -n, i get:
[2013-04-07 15:14:09] CL Platform 0 vendor: Advanced Micro Devices, Inc.
[2013-04-07 15:14:09] CL Platform 0 name: AMD Accelerated Parallel Processing
[2013-04-07 15:14:09] CL Platform 0 version: OpenCL 1.1 AMD-APP-SDK-v2.4 (595.10)
[2013-04-07 15:14:09] Platform 0 devices: 2
[2013-04-07 15:14:09] 0 Cypress
[2013-04-07 15:14:09] 1 Cypress
[2013-04-07 15:14:09] 2 GPU devices max detected
I think that the gpus are correctly configured.
I will try to update the driver.