Kernel Panic issue -- What's com.apple.GeForce got to do with this?

Question

Hi all,
Been experiencing this a lot lately, those dreaded Kernel Panic messages that ask you to restart the computer, complete with the depressing darkened screen in the background. The tech details below. Hope someone at Apple can help too.
What happens that leads up to it? Can't see a pattern, sadly. Sometimes I'm just not doing anything on the iMac, and no applications are running, and it goes into Kernel Panic. Other times I'm using an application, and halfway through, Kernel Panic. No particular application too.
Any ideas? Anybody?
From panic.log:
Sat Mar 25 13:55:27 2006
panic(cpu 0): Apparent UniNorth Hang: AGP STATUS = 0x00000004
Latest stack backtrace for cpu 0:
Backtrace:
0x00083498 0x0008397C 0x0001EDA4 0x0094C3C0 0x0094C530 0x00958798 0x00940D30 0x00940DC4
0x009403FC 0x00940138 0x00935E34 0x0027E650 0x00280324 0x0007AC48 0x00021668 0x0001BCE8
0x0001C0F0 0x00094318 0x000A0009
Kernel loadable modules in backtrace (with dependencies):
com.apple.GeForce(3.4.2)@0x92f000
dependency: com.apple.iokit.IOPCIFamily(1.4)@0x454000
dependency: com.apple.iokit.IOGraphicsFamily(1.3.5)@0x467000
dependency: com.apple.NVDAResman(3.4.2)@0x49d000
dependency: com.apple.iokit.IONDRVSupport(1.3.5)@0x487000
Proceeding back via exception chain:
Exception state (sv=0x1FBC9280)
PC=0x90007878; MSR=0x0200F030; DAR=0x01849008; DSISR=0x0A000000; LR=0x900073F8; R1=0xBFFF66D0; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 7.9.0:
Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC
Other details (as requested from Apple Tech pages):
Machine Model: iMac
CPU Type: PowerPC G4 (2.1)
Number Of CPUs: 1
CPU Speed: 800 MHz
L2 Cache (per CPU): 256 KB
Memory: 512 MB
Bus Speed: 100 MHz
Boot ROM Version: 4.3.4f2
Serial Number: QT210017MHD
GeForce2 MX:
Type: display
Bus: AGP
Display Type: LCD
VRAM (Total): 32 MB
Vendor: nVIDIA (0x10de)
Device ID: 0x0110
Revision ID: 0x00b2
ROM Revision: 1057.008
Display:
Resolution: 1024 x 768
Depth: 32-bit Color
Mirror: Off
Online: Yes
Main Display: Yes
USB Bus:
Vendor Name: Apple Computer, Inc.
Product ID: 32773 ($8005)
Speed: Up to 12 Mb/sec
Bus Power (mA): 500
USB Device:
Product ID: 365 ($16d)
Speed: Up to 12 Mb/sec
Serial Number: BROM4F536830
Bus Power (mA): 500
Vendor ID: 1273
Hub in Apple Extended USB Keyboard:
Vendor Name: Mitsumi Electric
Product ID: 4098 ($1002)
Speed: Up to 12 Mb/sec
Bus Power (mA): 500
Apple Optical USB Mouse:
Vendor Name: Fujitsu Component
Speed: Up to 1.5 Mb/sec
Product ID: 774 ($306)
Bus Power (mA): 100
Apple Extended USB Keyboard:
Vendor Name: Mitsumi Electric
Speed: Up to 12 Mb/sec
Product ID: 516 ($204)
Bus Power (mA): 250
Modem Information:
Modem Model: Dash2
Firmware Version: APPLE VERSION 2.6.3
Country: 9C (Singapore)
Driver: InternalUSBModem.kext (v2.6.3)
Interface Type: USB
SKU Name: UCJ
Modulation: V.92
Hardware Version: 1.0F
iMac G4 Flat Screen   Mac OS X (10.3.9)  

Answer 1

This is a user to user forum, so Apple is unlikely to respond here.
You are having kernel panics as shown in this Apple doc.#106227.
Do everything, in order, in Dr.Smokes Resolving Kernel Panics and don't leave out any steps.
Quote from Dr.Smoke "My FAQ is a roadmap: start at the beginning and work through to the end, following the instruction in the order specified, including the "If all else fails..." section if a cause or resolution is not found in an earlier troubleshooting step therein"
Here's more at a brody's KP site.
Cheers!
DALE