This may be the same problem described in the "Disappearing Topics", but I got told off for "Me Tooing" last time is stated I had the same problem. <img src="https://www.ubbcentral.com/boards/images/graemlins/frown.gif" alt="" />
I had a few members say that pages were loading up blank and some got the error "cant find details for member no. 00000162".
It turned out that a handfull of posts and member files had become 0 bytes (empty), and yes - that includes member 162.
I have also had reports of the whole forum dissappearing for short periods - although I can not be sure this is UBB related.
I am running version 6.04f at
www.migubb.co.uk Thanks.