Clear the cache and the cookies from sites that cause problems.

• "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
• "Remove the Cookies" from sites causing problems: Tools > Options > Privacy > Cookies: "Show Cookies"

Other things that need attention:

Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.

• Java Plug-in 1.4.1 for Netscape Navigator (DLL Helper)

Update the Java plugin to the latest version.

• http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE)

Update the Adobe Reader plugin to the latest version.

• http://get.adobe.com/reader/otherversions/

Thank you for your help, It appears that the problem has disappeared on it's accord!!

I started my computer today and It's ok now.

Thanks anyway

Steve