Networking Woes... Two Routers, One Network. Please Help

[MisterD]

First of all, thank you for looking.

I need some help with my network. I have been trying to work the kinks out myself, but so far any progress I make only lasts a few hours. Here goes: I added another router and an xbox to my previous network (all hardwired, none of that wireless nonsense). With the addition of the extra router, the internet seems to work whenever it wants to on all ends. Cycling the power on the modem fixes this issue, but only for a short period of time. I have been looking for answers on my own and have come to the conclusion that I need to disable the DHCP or whatever that means on the second router. I also discovered that I have no idea what I am doing. I am a graphic design major, and have no problems with any other computer related issue. Networking just seems to be a bit too much for me. Heres a visual guide to my network.

Modem -> Router A (Linksys BEFSX41) -> Computer A, Router B (BEFSR41) -> Computer B, XBOX


*Computer A is a Dell Dimension PC running XP
*Computer B is a Compaq Presario also running XP

Computer A Information
---------------------------------------------
Physical Address: 00-07-E9-84-5D-02
IP Address: 192.168.1.100
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
DHCP Server: 192.168.1.1
Lease Obtained: 3/17/2005 2:47:05 PM
Lease Expires: 3/18/2005 2:47:05 PM
DNS Servers: 68.87.64.196, 68.87.66.196

Computer B Information
---------------------------------------------
I couldnt find the Ip address etc.



Again, thank you for your time.

[afterburn]

why do you need to router?

Cable/DSL -> Router -> All other devices

set the router up to get DHCP from the network then setup to give DHCP to the other network interfaces. So you should have the public IP on the outside of the Router but a private address set inside using a Class C network as you described above.
ANd set the router up to forward DNS queries