Thanks for advice.
I've recently installed software for broadband and messed about with new modem, but this is not working yet as BT have not upgraded my line to broadband.
Also bought new printer (Dell) and installed software and usb cable for it. This is working ok.
Antivirus is out of date, My mate set the computer up for me 18 months ago and I've not done anything since then. I do get pop ups and ''winfixer'' has installed itself on my computer and tries to run every so often. I've tried deleting it but somehow or other it keep coming back.
My computer is Siemens Fujitsu Scaleo L.
I'll make a note of what you sugest Steve and see what happens.
Thanks