I have Vista. I had Adobe installed on the computer and it had been working fine for 6 mths. Recently was prompted by the computer that Adobe needed an update. I ran the install for 9.3 and it appeared to work, but when launching program get an error: "An internal error occurred". I've uninstalled and reinstalled Adobe Reader 9.3, but still can't get it to work. Please help! I need to use Adobe!