Only first row of pins visible and can't pin on computer (mac osX)

I see only the first row of my pins (ie 4-5 pins) on the feed. Same thing happens when i do a search, the page doesn't load completely, i get only 4-5 pins. I can't pin or edit, if i click on a pin, it maximises it and that's all, I don't even get the related pins. However on my ipad things are fine with my pinterest app. I haven't tried on a PC yet, but have tried on different browsers on Mac, the page just doesn't load completely.