Well infopop2 means nothing. Meaning it is not a stock code or known custom style.
Also not knowing what version you upgraded from or to.
But I would suspect that you are missing some graphics icon files.
Try the default styles and see if you have the same issues.
ubbthreads_stock.
If the stock style works then that means you have a problem with your infopop2 style. What ever that is.
