joeLaf,
Sorry, not sure what an MFC application is, but...
Is this problem only on the one laptop or is it on ANY
machine that also has the application in question running? If the
former, then it may indicate the issue is with the laptop itself.
If the latter, then it could be that the application is
intercepting the key presses and preventing them from reaching
Captivate. If that is the case, you may want to try changing the
default settings in Captivate (Options/Recording Options...) to see
if you can get a key combination that will work with your app. If
the app in question is intercepting ALL keystrokes, then I am at a
loss for advice.