I had been using VMware Workstation on Ubuntu for several years. VMware put out a new release of Workstation 7, so I downloaded it. I tried using the familiar steps I had used to upgrade VMware. It had been just a matter of entering these two commands:
sudo chmod +x VMware-Workstation-Full-7.1.0-261024.i386.bundle
bash: ./VMware-Workstation-Full-7.1.0-261024.i386.bundle: Permission denied
Malcolm Lewis explained that I could use ./ to execute the file after running chmod, but I could skip the chmod command and just use one command: sh [filename]. So I tried that. And, you know, that worked. Or at least it went further than before. So apparently my chmod +x command was not sufficient to make the thing executable. Possibly I needed to use chmod 777 or something.
I say it went further because I didn't type "sudo sh"; I just typed "sh" followed by the downloaded VMware bundle file. So after it said, "Extracting VMware Installer...done," it stopped with an error: "root access is required for the operations you have chosen." I did it again with sudo, and this time it ran. End of problem!