Minecraft Opens Minimum Scale, Crashes

The main minecraft window, when not maximized, defaults to a minimum dimension window. If it is not maximized promptly, usually as soon as it opens, minecraft will crash. This occurs after login.

This effects all mods, launchers, modpacks, and of course any version of minecraft prior to the ones using the new launcher, which I feel is temporary at best, as the solution seems directly related to some setting somewhere that determines window scale, and if it got messed up last time, I don't see how it can't be this time.
I have attached the crash report I received, I'm hoping this will shed some light on what appears to be a very generic sort of issue.

It's also worth note that I have tried removing every trace of minecraft from my computer with no apparent success of solving this problem when I re-installed it, save for the use of the 1.6 launcher.

Addendum: Having the new 1.6 launcher open while starting a mod or older client seems to force the window to start at normal scale.