Hi, Farmer_claire, yes a malware, but first see carefully the next link and try step by step to find the solution of the problem.

Server Not Found - Troubleshoot connection problems

thank you

Thanks for your reply. I think it must be "malware" as the help steps have not worked. What would you recommend. Thanks again.

Do a malware check with a few malware scan programs. You need to use all programs because each detects different malware. Make sure to update each program to get the latest version before doing a scan.

http://housecall.trendmicro.com/ - Trendmicro online

http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware

http://www.superantispyware.com/ - SuperAntispyware

http://www.safer-networking.org/en/index.html - Spybot Search & Destroy

http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free

http://www.microsoft.com/windows/antivirus-partners/windows-xp.aspx

check also for a rootkit infection with TDSSKiller.

http://support.kaspersky.com/viruses/solutions?qid=208280684

thanks again

Thanks so much that has worked, and you have saved me from a panic attack! Thank you again. Claire

You are welcome Claire