Setting up a static IP on a wireless router

[Amablue]

I wasn't sure whether to put this under Ubuntu help, or Networking, or here, so forgive me if this is the wrong forum for this.

I'm running Ubuntu 8.10 and I want to set up a static IP on it. There's apparently a bug in Network Manager that makes it so that I can't use static IPs with Network Manager, so I need a different solution.

I know I need to edit my interfaces file and my /etc/network/interfaces file and my /etc/resolv.conf file, but I can't get it working reliably.

Here is the output of ifconfig:

$ ifconfig
ath0      Link encap:Ethernet  HWaddr 00:1b:2f:c0:e0:6b  
          inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21b:2fff:fec0:e06b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:32970 errors:0 dropped:0 overruns:0 frame:0
          TX packets:30505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:33515771 (33.5 MB)  TX bytes:4601464 (4.6 MB)

eth0      Link encap:Ethernet  HWaddr 00:1f:c6:67:f8:26  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:252 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:88 (88.0 B)  TX bytes:88 (88.0 B)

wifi0     Link encap:UNSPEC  HWaddr 00-1B-2F-C0-E0-6B-00-00-00-00-00-00-00-00-00-00  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:103549 errors:0 dropped:0 overruns:0 frame:17127
          TX packets:31334 errors:54 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:199 
          RX bytes:44491265 (44.4 MB)  TX bytes:5313034 (5.3 MB)
          Interrupt:16

Can someone help me figure out he proper settings that I should be adding to the files so that I can use static IP on my computer?

[waterhead]

The best way to accomplish this is to leave the wireless set for DHCP, and set the router to assign a static IP address using DHCP. Since wireless cards are usually in mobile devices, setting a static IP address will make it difficult to connect outside of your home, if not impossible.

[Amablue]

I don't want to change the settings of the router, just my computer. In Windows (which I'm dual booting) I can change the settings in the control panel to use a static IP so I can use things like Bittorrent properly. That's all I really want to do here. This computer is a desktop, I don't intend to use it on other routers or anything.

[Amablue]

I think I found part of the problem. NetworkManager was still running, even though nm-applet was disabled. I removed NetworkManager and played with the settings for a while, but I can't get it to work reliably. It will work for a few seconds sometimes after I run sudo /etc/init.d/networking restart, but it craps out shortly after that.

If it helps, here is my /etc/network/interfaces file:

auto ath0
address 192.168.1.50
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
wireless-essid TheHatch

And my /etc/resolv.conf:

domain hsd1.ca.comcast.net.
search hsd1.ca.comcast.net.
nameserver 68.87.76.178
nameserver 68.87.78.130
nameserver 68.87.69.146

Edit:
Nevermind!
After resetting the computer it seems to be working reliably now. I wonder what made the difference?