Conditional tag problem in Widget Logic

Just started using Widget Logic (great BTW!)… have a minor problem. Would like to show a widget both on a page called events-listings and on posts appearing in category 65, and 68-72. I tried this:

is_page('events-listings') || in_category(65, 72, 71, 70, 69, 68)
and this:
is_page('events-listings') || in_category(65,72,71,70,69,68)

But none of it does the trick, it only shows on the events-listings page… any hints would be greatly appreiciated!