The text may blink for slow modems because the page has to refresh, remember php outputs an HTML page and is not an applet, so cant dynamicly change, so a reload is needed im afraid.
And to the person who said this uses a lot of server resources needs to re-check the code, it barely uses anything at all, an additional 1 query on the page, the users in chat iframe uses 1 query, and the chat itself uses 1 query (possibly an extra few for extra msg's and such), but barely anything compared to the rest of the default page's on vBulletin forums itself.
As for refresh taking forever, possibly your server loading slow perhaps, both frames are set to refresh every 8 seconds.
As for giving me the code for the chat in forum-index, no need, its only a simple bit of php to draw out the data already loaded and a template edit, thanks for the offer but i prefer to do things on my own
- Zero Tolerance