Annotating by highlighting randomly not working

[GoogleCodeExporter]

650 / PRS+ 2.1.0alpha

Everything works fine after a cold start or a reboot until "suddenly” (I 
can't determine any trigger event for this) highlighting in books doesn't work 
anymore. Yet drawing is possible at any time. Would love to keep that version 
and a fix would be be most appreciated.

Thanks for any hint.

Original issue reported on code.google.com by [email protected] on 29 Apr 2013 at 9:03