I've got three users all on windows 7 32-bit, and they have the lastest version of adobe reader installed. When I click on a link to a pdf it act like nothing was done. It doesn't open a page it doesn't open adobe it just doesn't do anything. I've uninstall adobe a few times. I've turned the the link helper addon on and off. If you copy the link to the pdf and paste it into the address bar it loads fine. I happens on multiple pages, an example is http://www.mkbattery.com/pvsolar_products.php if you click download nothing happens. If you right click it and click save target as it allows you to save it. I'm not sure what else to try any help would be greatly appreciated.