FC4 Test 2 Issues

[P Cieslar]

Sorry for starting a similar thread, but the old thread "vncviewer" was 
no longer letting me reply.

I have had my ibook for over 2 years now.  The first time i have ever 
heard the fan was last night - after installing FC4.  The same thing 
happened again today, while the ibook was sitting idle.  The fan was 
very loud and the ibook was incredibly hot.  Have never seen it this 
way, even with FC3 installed.

A few questions:
Is this normal?
Will this damage my ibook?
How do I get sound?
How do I get my modem working?

lspci shows:

--
00:0b.0 Host bridge: Apple Computer Inc. UniNorth/Pangea AGP
00:10.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility
M7 LW [Radeon Mobility 7500]
0001:10:0b.0 Host bridge: Apple Computer Inc. UniNorth/Pangea PCI
0001:10:17.0 Class ff00: Apple Computer Inc. KeyLargo/Pangea Mac I/O
0001:10:18.0 USB Controller: Apple Computer Inc. KeyLargo/Pangea USB
0001:10:19.0 USB Controller: Apple Computer Inc. KeyLargo/Pangea USB
0002:20:0b.0 Host bridge: Apple Computer Inc. UniNorth/Pangea Internal
PCI
0002:20:0e.0 FireWire (IEEE 1394): Apple Computer Inc. UniNorth/Pangea
FireWire (rev ff)
0002:20:0f.0 Ethernet controller: Apple Computer Inc. UniNorth/Pangea
GMAC (Sun GEM)
--

and cat /etc/modprobe.conf shows:
--
alias eth0 sungem
alias usb-controller ohci-hcd
--

g3 ibook, model A1007.

thanks in advance.

Paul C