GIMP: Save as anything but XCF crashes the plugin

I just installed the latest GIMP portable (2.6.11) and every time I try and save the image as anything except the XCF type of file I get this:

GIMP Message
Plug-in crashed: "file-jpeg.exe"
(E:\..blah blah blah\file-jpeg.exe)

The dying plug-in may may have messed up GIMPS internal state.
You may want to save your images and restart GIMP to be on the safe side.

GIMP Message
Saving 'image name' failed:

Procedure 'file-jpeg-save' returned no values.

I have to Ctrl+A, Ctrl+C then Ctrl+V into MSpaint.... ughhh