won't load or let me sign in

I tried to get on pinterest from my start page, like usual. It told me "suspicious malware detected". Now it keeps telling me to reset connections, wait and try later, make sure web address is correct etc... I have done all of that. I deleted the "tile" from my start page and tried going directly to Pinterest and logging in from main site. Still not working. I then tried to see if it works on my kindle fire hd, and it comes right up. Please help! I love Pinterest and have never run into this before.