CodeIgniter Install Issue I Cannot solve

[eluser]bknox360edu[/eluser]
A PHP Error was encountered

Severity: Notice

Message: Undefined variable: mimes

Filename: core/Output.php

Line Number: 107


This was another error I got recently


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Fatal error: Call to undefined method MY_Loader::template() in C:\wamp\www\Root\var\CI\CI_application\controllers\programs.php on line 106


On my localhost when I remove the function I get this error, notice the difference MY_Loader, and CI_Loader. The Core MY_Loader doesn't seem to be loading, any help?
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That seems to make sense, I added the function to system CI_Loader.php class and if worked, any idea how I can get CodeIgniter to load MY_Loader?