You probably aware about this too: more image on an archive
then more RAM required by Comical.
I hope in the next release Comical will use different method /
approach for caching pages, so you can still open big archive
(say, 100 MB archive with 500 pages) even on a computer with
512 MB RAM.
It seems this is a known problem and someone made patch:
http://sourceforge.net/tracker/?func=detail&aid=1754400&group_id=98800&atid=622095