I'm trying to update to the latest version of Adobe Reader, but having a bit of trouble doing so. When I attempt to run the installer, it asks for permission, then the installer icon disappears from the desktop and nothing happens. The installer shows up as a running process, and is located in the AppData\Local\Temp folder, but doesn't seem to run. I get the same result when I run the .exe from the downloading site, and with other Adobe versions (9 and 10, but I want to install 11). I removed the older version I had with Revo, and now I'm stuck without Reader. I'm running a 32-bit OS.