Thanks for your replies, but I'm a total Luddite/
re anything IT.
I've gone to the Control Panel/network and internet connections/internet options which brings me to various tabs e.g. general/security and have looked in each section but there is nothing marked as powersave or nic that I can see.
If you could advise further I'd really appreciate it, (It's for a Samsung Netbook)
Thanks from the Luddite