Does anyone experience this mysterious behaviour and have an answer to it, starting to lose the plot with it OS is Vista Business. Using IE 7 or Mozilla firefox, most pages I browse to return a "cannot display page error", hitting browser refresh button then connects to page with no problem. Returning to same page in same session is usually OK, but if I shutdown browser and go back to page usually have to follow same cycle again, i.e. refresh page to get it displayed. In the month or so since I upgraded to Vista I have tried all the following to no avail: - Turned off Windows Firewall - Turned off UAC - Turned off\dropped to Low the IE Protection Level - Uninstalled only anti-virus present (AVG, note this was clean install so likes of Norton have never been installed) - Reset IE7 to factory settings - Installed and uninstalled various Service packs and Hotfixes - Established will do this even with Google searches from time to time, and is not limited to addresses imported to Favourites All to no avail. XP Home and XP PRO machines on same network have no problems whatsoever. Strange...!