posts not showing up

i recently switched hosts, and of course it wasnt a super smooth transition, but thats neither here nor there. problem is is that on ie and firefox my site is still showing 5 or 6 posts ago, and not the newest ones. i can see the the new posts just fine on firefox, but other visitors cant via both browsers. i thought maybe it was supercache that was causing the issue, but i disabled it and the issue remains. thoughts? thanks in advance. my site is https://captainsdead.com