UBB.threads PHP Forum Software Community Forums UBB.classic [Archived] UBB.classic Bugs [NOTABUG] Various bugs in version 6.7.3

I discovered even more bugs:

1) I inserted a background image.

2) The bg image shows up on the index page of the forum.

3) However, when I go to forum1, the page background does NOT show up. Neither do the topic list. Only when I switch the drop-down-menu to "show topics from last 100 days" for example, the topic list appears AND the background image appears.

4) When I enter the topic itself (where the message is), the page background does not show up at all and there seems to be nothing I can do to make it appear.