TwitterService breaks user tool configuration

I am running elgg 1.7.4

When I enable the twitterservice tool under Tool Administration, it breaks "Configure your tools" under a users Settings options.  Once enabled, all a user see is the text below.  No CSS seems to load, no headers, footers, buttons...nothing...just the plain text below in the browser window:

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This panel allows you to control and configure the personal settings for the tools installed by your system administrator.

Link your NUXXOR Groups account with Twitter.

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If I disable this tool again, everything displays normal in "Configure your tools". I have not installed any other plugins other than what comes with the base elgg install.

Any ideas?

Note: I have applied for, and configured twitterservices with the required Twitter keys