[King Bob On The Cob]

Title says it all, but here's what happens.

I'm on a 12" PowerBook (1.5 GHz, 768 MB RAM, GeForce FX Go5200 w/64 Megs VRAM).
I used Apple's Display Calibrator (System Preferences->Display Pane->Color->Customize) to get a properly adjusted color display, but whenever I use my custom calibration (alot more towards the blue end of the spectrum to cancel the yellowish lighting in my house), core image apps will either crash (In the case of ShapeShifter's GUITweak) or simply display black (Hacked version of Apeture that I usually run on my father's G5, but would still like to be able to use on the go). Whenever I choose a built in calibration, it works fine, but looks crappy.

Any ideas?