Help with Kernel Panic

I have gotten two kernel panics in the past two days and I don't know why. Can someone please tell me? Here is the report:

panic(cpu 1 caller 0x0019C9EF): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x80010033, CR2: 0x00000000, CR3: 0x00d1e000, CR4: 0x000006a0
EAX: 0x03a694c0, EBX: 0x00000000, ECX: 0x00000000, EDX: 0x03a69b00
ESP: 0x00000000, EBP: 0x24abbd38, ESI: 0x037fa9c0, EDI: 0x03a66d40
EFL: 0x00010293, EIP: 0x00000000, CS: 0x00000008, DS: 0x00000010

Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x24abbbc4 : 0x128b5e (0x3bbf84 0x24abbbe8 0x131bbc 0x0)
0x24abbc04 : 0x19c9ef (0x3c13b4 0x1 0xe 0x3c116c)
0x24abbcb4 : 0x197b8d (0x24abbcc8 0x24abbd38 0x0 0x24ab0048)
0x24abbcc0 : 0x0 (0x24ab0048 0x3b0010 0x37f0010 0x10)
0x24abbd38 : 0x3a5056 (0x3a66d40 0x37fa9c0 0x3a85704 0x121887)
0x24abbd98 : 0x189395 (0x3a85700 0x3f5e1ac 0x36107b4 0x36107c8)
0x24abbdd8 : 0x12b389 (0x3f5e184 0x3610798 0x0 0x0)
0x24abbe18 : 0x124902 (0x3f5e100 0x0 0x48 0x24abbefc)
0x24abbf28 : 0x192f04 (0x24abbf54 0x0 0x0 0x0)
0x24abbfd8 : 0x19805b (0x3e1a7e0 0x3e1a7e0 0x0 0x0) No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb009d458

Kernel version:
Darwin Kernel Version 8.6.2: Thu Apr 13 18:48:29 PDT 2006; root:xnu-792.9.59.obj~1/RELEASE_I386

Model: MacBook1,1, BootROM MB11.005F.B00, 2 processors, Intel Core Duo, 2 GHz, 2 GB
Graphics: Intel GMA 950, GMA 950, Built-In, spdisplays_integrated_vram
Memory Module: DIMM0/BANK 0, 1 GB, DDR2 SDRAM, 667 MHz
Memory Module: DIMM1/BANK 1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x86), 0.1.20
Bluetooth: Version 1.7.4f16, 2 service, 0 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: TOSHIBA MK6034GSX, 55.89 GB
Parallel ATA Device: MATSHITADVD-R UJ-857
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA