Hi there. Can anybody help?!!!! I have a Macbook pro running Yosemite. Last night it started playing up . Websites running very slow. Some wouldn't load at all. Couldn't even send an email. Gmail now working okish but other sites still won't load and some are incredibly slow. All fine on my iphone and Ipad which are connected to the same network. I am a freelance illustrator. I need to work!!! Anyone got any ideas!! Thanks