Hi Bob,
I never encounter this problem.
This looks like you have set a snippet(*) with a quote mark as trigger?
And, you should always mention your environment to help tracking this down:
OS?, Bitness?, Language?, EE version?, portable or installed? Which configuration/Syntax? Where do you enter the quote? …? …?
(*) = http://www.emeditor.com/text-editor-features/extensibility/plug-ins/snippets/
.