Admin Message breaks wp-admin area

I am trying to install some of your plugins on my site http://www.sasitup.com/parnters tonight and when I tried to install the Admin Message plugin i was taken to a white screen and could not navigate to any part of my admin panel until I went in and deleted the plugin via ftp (then the site started working again). Anyone have this happen to them? To install this plugin I uploaded the admin-message-1.1.zip in my wordpress plugins area. Any thoughts?

Also - I'd like to send you any error messages, but I'm not sure how to access error messages. I have safari and firefox to test on in anyone wants to tell me how

Thanks for all your help!

ANOTHER ONE - the same thing happened with admin tips plugin - hmmm?