Need help with wireless card.

[jerry]

I am using Kubuntu 8.04.2.
lspci says I have Atheros Communications Inc. ar2413 802.11 bg NIC (REV 01).
I had been using kernel 2.6.24-16-generic and could enter the ESSID and 
password, and the wireless would work.

A few weeks ago the updates installed a new kernel 2.6.24-23-generic and 
since then I cannot even get the card recognized by iwconfig.
iwconfig says
lo   no wireless extensions
eth0 no wireless extensions

I figure there must be something not implemented in the new kernel that 
prevents the wireless from working, but I cannot find it. Even if I did 
find out what it was I would not know how to correct it short of 
recompiling the kernel.

I would appreciate any help to get the wireless card working with the 
new kernel.

I used the program kompare to diff  /proc/modules while running each kernel.
I saved the results of diff  /proc/modules with each kernel and kompare 
says only the first 16 lines of the modules for 2.6.24-16 are different 
and are not present in 2.6.24-23.
Here are those lines:
ipv6 267780 8 - Live 0xfa081000
rfcomm 41744 2 - Live 0xf9811000
l2cap 25728 13 rfcomm, Live 0xf96e6000
bluetooth 61156 4 rfcomm,l2cap, Live 0xf9801000
vboxdrv 61104 0 - Live 0xf96d6000
mga 61952 2 - Live 0xf96bb000
drm 82580 3 mga, Live 0xf96a5000
ppdev 10372 0 - Live 0xf9687000
speedstep_lib 6532 0 - Live 0xf966d000
cpufreq_userspace 5284 0 - Live 0xf9675000
cpufreq_powersave 2688 0 - Live 0xf9654000
cpufreq_stats 7104 0 - Live 0xf9631000
cpufreq_conservative 8712 0 - Live 0xf967e000
cpufreq_ondemand 9740 0 - Live 0xf967a000
freq_table 5536 2 cpufreq_stats,cpufreq_ondemand, Live 0xf966a000
dock 11280 0 - Live 0xf8b99000

I also have the diff from the config files for both kernels from /boot:
153a154,157
 > CONFIG_CGROUPS=y
 > CONFIG_CGROUP_CPUACCT=y
 > # CONFIG_CGROUP_DEBUG is not set
 > CONFIG_CGROUP_NS=y
157c161
< # CONFIG_CIFS_EXPERIMENTAL is not set
---
 > CONFIG_CIFS_EXPERIMENTAL=y
158a163
 > CONFIG_CIFS_UPCALL=y
250c255
< # CONFIG_DEBUG_RODATA is not set
---
 > CONFIG_DEBUG_RODATA=y
331a337
 > CONFIG_FAIR_CGROUP_SCHED=y
332a339
 > # CONFIG_FAIR_USER_SCHED is not set
591a599
 > CONFIG_ISCSI_TCP=m
692c700
< # CONFIG_NETDEVICES_MULTIQUEUE is not set
---
 > CONFIG_NETDEVICES_MULTIQUEUE=y
795a804
 > CONFIG_NET_TULIP=y
810a820
 > CONFIG_NF_CONNTRACK_EVENTS=y
          820a831
 > CONFIG_NF_CT_NETLINK=m
1095c1106
< # CONFIG_SSB_DEBUG is not set
---
 > CONFIG_SSB_DEBUG=y
1149a1161,1164
 > CONFIG_TULIP=m
 > # CONFIG_TULIP_MMIO is not set
 > # CONFIG_TULIP_MWI is not set
 > # CONFIG_TULIP_NAPI is not set
1415c1430
< # CONFIG_AX25_DAMA_SLAVE is not set
---
 > CONFIG_AX25_DAMA_SLAVE=y
1426c1441
< # CONFIG_B43_DEBUG is not set
---
 > CONFIG_B43_DEBUG=y
1539d1553
< # CONFIG_CGROUPS is not set
1555a1570
 > CONFIG_CPUSETS=y
1601a1617
 > CONFIG_DRM_VIA_CHROME9=m
1736,1737d1751
< # CONFIG_FAIR_CGROUP_SCHED is not set
< CONFIG_FAIR_USER_SCHED=y
     2073d2086
< CONFIG_ISCSI_TCP=m
2388d2400
< CONFIG_NET_TULIP=y
2396d2407
< CONFIG_NF_CONNTRACK_EVENTS=y
2401d2411
< CONFIG_NF_CT_NETLINK=m
2527a2538
 > CONFIG_PROC_PID_CPUSET=y
2905,2908d2915
< CONFIG_TULIP=m
< # CONFIG_TULIP_MMIO is not set
< # CONFIG_TULIP_MWI is not set
< # CONFIG_TULIP_NAPI is not set
3104c3111
< CONFIG_VERSION_SIGNATURE="Ubuntu 2.6.24-16.30-generic"
---
 > CONFIG_VERSION_SIGNATURE="Ubuntu 2.6.24-23.48-generic"
(END)                                

Thanks
Jerry