Hey, I noticed this happen yesterday a few minutes before the site was down for maintenance for a short while but it happened again after, and has just started again now. If I click on a thread it doesn't open the page, instead a download box opens simply titled 'unread'. I managed to get round it last night by clicking an alert I had in the thread I was trying to read, and just now found that clicking the page number of the thread also opens it. It was working normally again today until just now, so I'm a bit confused. Any idea what this may be?