Have you tried forcing a screen refresh? Tribble suggested clicking on the page number to do this. When I use a USB keyboard, I still hit return on the on-screen keyboard to force a refresh.
The iliad_refresh.conf file controls automatic screen refreshes, Antartica has a good
explaination of this file. However, I think the on-screen keyboard might be buffering some requests because automatic updates don't seem reliable in mrxvt.