Problem using Capacitive Touch Library on Port1

(Sorry for double post, but I think this is a better place to ask than in the Energia-Library Sub Forum)

I got CapTouch working for Pins 2.x without problems, but not for Pins 1.x (e.g. 1.0, 1.3, 1.4, 1.5, 1.6 and 1.7 - I need 1.1 and 1.2 for serial).

I'm using a Rev. 1.5 LP with G2553 and Energia 0101E0012 (Win7, 64bit). Of course I removed the jumpers for 1.0 and 1.6.

Serial output:

Delta on P1.0: 32766 //never changes
Delta on P2.1: 264 //working, here: not touched
Delta on P2.4: 8340 //working, here: touched
Delta on P2.6: -3 //working, here: not touched

Am I missing something? Browsing the source code I didn't found anything that could explain this behaviour.

Best wishes

yosh