Devel Ver 3 worked - CI3 broken on live host

Hi,
First, THANKS SO MUCH for taking over CI, and providing a path to the future with CI3 and maybe 4!!

I have a site that's been running quite happily with CI for years, first on CI2 and for the last 2 years with CI3 development version.  Now that CI3 is officially out I thought I'd go through the migration guide (2->3) and make sure that I caught all the changes.  With everything as up to date as I can make it --

On my XP machine with XAMPP everything works fine with the newest CI3 release.

When I try it on our live shared server I get the following error:

A PHP Error was encountered
Severity: Core Warning
Message: PHP Startup: ssh2: Unable to initialize module Module compiled with module API=20090626, debug=0, thread-safety=0 PHP compiled with module API=20090613 etc.

NOTE!!!  This is NOT an ssh2 problem as to my knowledge I'm not even using ssh.
If I go into php.ini and comment out the ssh2 line:
;extension=ssh2.so
it throws a different error:

A PHP Error was encountered
Severity: Core Warning
Message: PHP Startup: SourceGuardian: Unable to initialize module Module compiled... etc

Any insights will be appreciated