Vague 'Things Not Found in' w/ demos

[MotorWülf]

Hey, I'm having a vague error that is very similar to this:
http://zandronum.com/forum/showthread.php?tid=3125

In fact, it's the same thing, just it's happening with my mappack, and I only fail to join when I'm trying to record a demo, barring that, it works just fine.

Could someone please elaborate on

[the issue was] some A_START and A_END labels were left in the sample mapwad as dusk found.

or point me in the right direction?

Thanks.


EDIT:
Deleting mapinfo has fixed it, going to dig through and see what the offender was

EDIT II:
Okay, so the offender was a crappy deathmatch map that was just sitting in the wad inaccessible except by console command.
Weird thing is I haven't touched it since I've made it, and this problem is new, so... anyway, this probably isn't helpful to anyone, so if I delete this post will the thread disappear?

[Qent]

Hey, you never know.... Someone might search for their error message and turn up your post. ;D

[-Jes-]

Hey, you never know.... Someone might search for their error message and turn up your post. ;D

Don't be silly, people NEVER EVER USE THE SEARCH FUNCTION!

[Ivan]

This message is related when the markers or the order of the placement of map related things in your wad/pk3 are wrong. Rearrange your files.