I'm not saying it is a security issue with her machine,
but there is somthing on her machine.

She could be on dial up and a slow connection?

Ask her if she has access to a second machine on the same
connection and see if it continues.

Unfortunately you may have to leave her to sort this
one out on her own.

Just to check she has cleared her cookies from her
machine and cleared all browser temp file?

Thanks. I will ask her and be back when I get her response.