1. may i know how many twitter widget that you use on those page? i think the problem will appear if you are using two or more twitter widget on single page.
2. for menu collapse, may i see your website url? i unable to reproduce your problem also on our demo site its working fine.
3. on which blog post? can you give me link? also have you any plugin enable outside plugin that we attach on this themes? it may cause the problem on your themes.