Safari Crashes (after installing and uninstalling Safari beta 3)

Question

I noticed that Safari began to crash when I installed the beta. After reverting to Safari 2.0.4 the problem only got worse. I have the latest updates from Apple and am using OS 10.4.10. I can rarely use the internet for more than a couple of minutes before I get the message saying that I must restart my computer. Here is the problem report that I get when I restart my computer.
panic(cpu 1 caller 0x001A4A55): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x80010033, CR2: 0x0000420c, CR3: 0x00dc1000, CR4: 0x000006e0
EAX: 0x00004208, EBX: 0x00004208, ECX: 0x00004208, EDX: 0x25bbfa34
CR2: 0x0000420c, EBP: 0x1407bb28, ESI: 0xc0046101, EDI: 0x00000000
EFL: 0x00010202, EIP: 0x0028dc12, CS: 0x00000008, DS: 0x01420010
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x1407b918 : 0x128d08 (0x3cc0a4 0x1407b93c 0x131de5 0x0)
0x1407b958 : 0x1a4a55 (0x3d24b8 0x1 0xe 0x3d1cdc)
0x1407ba68 : 0x19aeb4 (0x1407ba80 0x1 0x1407ba98 0x19a216)
0x1407bb28 : 0x296450 (0x2413a000 0x2782050 0x1407bb58 0x0)
0x1407bb68 : 0x285748 (0x0 0x0 0x2623628 0x2623568)
0x1407bdd8 : 0x354558 (0x28b6d70 0xc0046101 0x1407beb8 0x0)
0x1407be38 : 0x3545c5 (0x28b6d70 0xc0046101 0x1407beb8 0x2c5e1f4)
0x1407be58 : 0x332ac8 (0x28a69Model: MacBook2,1, BootROM MB21.00A5.B00, 2 processors, Intel Core 2 Duo, 2 GHz, 1 GB
Graphics: Intel GMA 950, GMA 950, Built-In, spdisplaysintegratedvram
Memory Module: BANK 0/DIMM0, 512 MB, DDR2 SDRAM, 667 MHz
Memory Module: BANK 1/DIMM1, 512 MB, DDR2 SDRAM, 667 MHz
AirPort: AirPort Extreme, 1.1.8.5
Bluetooth: Version 1.9.0f8, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK8034GSX, 74.53 GB
Parallel ATA Device: MATSHITADVD-R UJ-857D
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
Thanks in advance for any help that can be offered.
MacBook 2,1   Mac OS X (10.4.10)  

Answer 1

To start from the top, these are the external devices that I have used on my computer: Wireless Mighty Mouse, Wired Apple Keyboard, Cannon i450 printer, and Nikon Cookpix L12 camera. If it makes a difference, I didn't install the software with the camera, I just use iPhoto. The camera is the only new thing (bought about a month ago) that I've plugged into my computer. Everything else has been used long before the problem came up. This issue still occurs when I have nothing plugged into my computer, including mouse and keyboard.
Next, I am not aware of installing any 3rd party software to Safari. The issue has only occured when I've been using Safari. Sometimes I've had other applications open at the same time, like Stickies or Excel, but the problem report always looks the same.
If the issue is faulty RAM, would it just spring up on me? (I bought the computer in November, so it isn't "brand new")
One thing I have noticed is that the computer has never crashed when I've plugged it directly into my internet router, but I don't do that often. I don't know if this is relavent or not.