Cannot install Alyeska responsive wordpress theme

When trying to install the Alyeska responsive wordpress theme I get a WordPress failure notice that just says…

"Are you sure you want to do this?

Please try again."

When I try again I get the same result. Are certain themes blocked by DreamHost? I have used this them several times on HostGator & GoDaddy without any problem.

That error usually means you have a plugin (or your existing theme) kicking permissions.

I would upload the theme manually via SFTP.