Can't fix kernel panic

Question

Help! Yesterday my 2 year old iBook G4 started getting kernel panics. I repaired the disc, then reinstalled with install and archive. I was surprised to see my computer look exactly the same as it was before. This is the first time in the 15 years I've used Macs that I had to reinstall an OS. Anyway, after running software update to get to 10.4.10, plus updating everything else, I'm still getting kernel panics. I am so upset! I can't get an appointment with the Apple Store genius bar until tomorrow, so I was wondering if anybody had any suggestions. Right now it's working, but I know as soon as I pick the laptop up to bring back to the desk and plug in, it will panic again. If it's something loose it will have to wait until tomorrow-can't get the keyboard off. Thanks for any help you might have!

Answer 1

As far as the RAM, I just checked it to make sure it was pushed in nice and tight. I've been searching the net for answers, and a lot of people are saying it's the Airport card jiggling loose. I cannot get to mine, so I'm bringing to the Apple Store tomorrow. In the meantime, here's what the panic log has:
Fri Aug 10 11:20:41 2007
panic(cpu 0 caller 0x000A8B98): Uncorrectable machine check: pc = 0000000036D35578, msr = 0000000000149030, dsisr = 42000000, dar = 0000000008490000
AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000
L2FIR = 0000000000000000, BusFir = 00000000ff000000
Latest stack backtrace for cpu 0:
Backtrace:
0x00095544 0x00095A5C 0x0002683C 0x000A8B98 0x000A7E28 0x000ABB00
Proceeding back via exception chain:
Exception state (sv=0x2D9EB280)
PC=0x36D35578; MSR=0x00149030; DAR=0x08490000; DSISR=0x42000000; LR=0x36D49FD4; R1=0x17F7BD30; XCP=0x00000008 (0x200 - Machine check)
Backtrace:
0x00278BF4 0x36D49FD4 0x002CD5B4 0x002CC47C 0x000A9694
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.AppleAirPort2(401.2)@0x36d0b000
dependency: com.apple.iokit.IONetworkingFamily(1.5.0)@0x2dd0a000
dependency: com.apple.iokit.IOPCIFamily(1.6)@0x27fdf000
Exception state (sv=0x2DD8B500)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.2.1: Fri Jun 24 23:31:10 PDT 2005; root:xnu-792.3.2.obj~1/RELEASE_PPC
I see Airport listed but I have no idea what it means.
Thanks for your help.
Elisa
BTW-the panics are coming at all different times, even when the screen saver is on.