while you're looking at SB Mobile on it, see if you can figure out why threads don't refresh when you click on them again on a BB.
several of us are having this problem. (I think the BB might be the problem here, but maybe you can figure out how/what to do).
I don't know exactly how BB caches pages. I know that "back in the day" - I had to set my internet explorer to "check for new version of webpage" for refresh of a thread to work. I would have to assume that BB's cache the page, and don't realize that it's a newer version of that page?
It sounds like a BB Browser issue, and not one that I can correct with the style.
When googling Iris and BB, I found this article... so maybe it will get better?
Torch Mobile, makers of the Iris browser, acquired by RIM; web browsing on a BlackBerry to suck less