Install error with embed plugin

New install of 1.7.14 on shared hosting. No other plugins added.

Enabled all plugins but "Enabled successfully" system message remained visible and the site hung.

I then uploaded the usefull empty "disable" folder to the mod directory and got control back. I then "Enabled" the plugins one by one and discovered that the "embed" plugin was the problem, so I deleted it from my server and uploaded the plugin again. It still cause the system to hang.  I deleted the whole installation of elgg and and installed 1.7.10 but exactly the same problem with the embed plugin.

Any ideas what is causing this problem?