Thanks for your prompt reply. I've gone to read the reply and I have found out they have problems with File Vault which is a Mac-associated problem.
I figured out and I tried to run as a Admin priviledge to no avail. I still see the Dreamweaver splash screen then it disappears.
Btw, I am running on a Windows PC.
You are spot on. It has got to do with Acer computer.
After downloading the patch, it is now working fine!
Thanks a lot!