I did the suggested update to Adobe 11.3 Now whenever I click on a pdf or try to open Adobe reader , I get a balck screen on the reader and then it turns off. I have downloaded and removed the three times. I showed this to my IT people at school and they could not figure it out. I would back down to Adobe Reader 10 but your website will not let me.
Go to: C/Programs/Adobe/Reader 11(or 10)/Reader
Look for a file named EULA.exe or just EULA (if your folder options are set not to show file extensions)
Double click it. You'll see the End User License Agreement (EULA). Click "Accept" and then Reader should work.