Ah yes, that could be the reason. Check out this thread; there were indeed some problems with func_breakables in older dll's:
http://forums.bots-united.com/showthread.php?t=2230
Oh... and thanks for your kind words. :o It's nice to hear that, especially from someone who has really had a thorough experience with the waypoints. I hope the next one won't disappoint you, hehe...
