Wierd IDE/IP Masq issues

[Geoff Smith]

Hi all,

I'm getting some really wierd behaviour on my network at home.
My desktop machine acts as a gateway for the rest of the machines on the 
network, just doing basic IP Masquerading using iptables. Whenever I'm 
either watching a DVD or burning cds on my desktop, my desktop seems to 
stop forwarding port 80 to other machines on the network. Services like 
pop email work fine. The moment the cd finishes burning or I turn off 
the DVD, everything is back to normal.
I'm running Red Hat 8 on my desktop. My burner and DVD are both ide 
drives. DVD is /dev/hdc, burner is /dev/hde.
Has anyone seen or heard of this sort of thing before?

Cheers,

Geoff