Comment 91 for bug 40125

Sorry, I failed to mention - this is with an orinoco gold card (orinoco_cs).

What has since worked for me is adding the scripts in https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/40125/comments/43

with the exception that /etc/acpi/reseume.d/99-network-manager.sh was renamed to /etc/acpi/resume.d/63-network-manager.sh
in order to speed up the restart of network manager (it worked before, but I would have to wait 15-20 seconds after resume before the applet would find the network interfaces again).