Ok, I started noticing problem using adobe to open abobe files. Instead of getting the 'adobe' content, the file will open with 'windows', but with right click and 'open with' with adobe option, files open fine.
So, I uninstalled adobe 9.3.1, and tried to install back (9.3), but installation did not 'complete' after 7/8 tries. Quite a few times, the installation process didn't even look for 'destination' for the file!
Now, with adobe being ‘re-installed’, I cannot open any file, what's more, every time I click on adobe, my screen will jump completely black, get all the desktop icons look highlighted and weird, and then a box re surface with "adobe encountered an error and need to shut......"