Also if you don't want to turn off ChildSafe you could try the following which worked for me:-
Problem
If you are on Virgin Media or Talk Talk there is an issue accessing the ebaystatic.com domain (problems displaying ebay web pages and logging in).
Workaround for Virgin Media:-
Log into your "Virgin Media" Account online, select "My Virgin Media" then select "Manage My Web Safe Settings" under "My Packages Broadband"
From the "Web Safe Settings" page select the "Websites" tab, then enter "ebaystatic.com" under the "Allowed Websites" selecting "add", then finally select "Apply".
Last resort workaround for Virgin Media:-
If this does not work (Warning: This will obviously allow access to porn sites etc so try the above option first) just turn off "Child Safe".
Workaround for Talk Talk:-
I don't have Talk Talk but I am sure it will be very similar.
