This is happening to me again today - a repeating problem. The initial load of my email in-box is perfectly fine, but when I try to compose an email or a reply, it takes .... minutes to load the page for me to compose my email in. I tend to just go away, leave it, do something else for a while and then come back. I'm using Windows 7 and an up-to -date version of Firefox. No problems with other internet pages. Not great.