Every time I use Thread Tools > Edit Thread and make a change to the thread title, the topic always changes from open to locked. Note that the "open" check box always has a tick before the editing is performed. The tick disappears during the edit and I have to go back into Thread Tools > Edit Thread a second time to redo the tick in the "open" check box. If I forget to do this the topic stays locked and I get complaints from users asking why the topic was locked! Any ideas as to why this is happening? I do not want the topic to become locked.