I've had this hack installed for a while now, and absolutely love it. Can't do without it!
Doing some research, so bare with me. Trying to find out why when I view a thread, the counter in increased by 2. So a thread with 100 views will now show 102 after I've read it. 2 views for the price of 1!
The function appears to be coming from the showthread.php file. Over at .com, someone said to check templates. The only difference in the showthread template is my replybox. Is there something in the hack that could be causing 2 reads instead of 1?