Broken closed captions

[Nih]

I wasn't sure where to post this, but the description for this section read "Any help with any aspects of Half-Life 1 & 2 editing here." so I figured this would be the best spot.

I'm running into some strange issues with close captions when using SteamAppId 215.
I'm using a custom closecaptions_english.txt, and I've compiled a .dat as well. Compile log: http://img299.imageshack.us/img299/8928/workingsa5.jpg

It all works perfectly fine when SteamAppId is set to 220, where it reads the .txt instead of the .dat. But when I set it to 215, it simply goes crazy. Sometimes the text isn't displayed, sometimes it's delayed, sometimes the text goes out of the box, sometimes parts of a close caption is missing, and sometimes the text crosses over other text.
When it comes to non-.vcd close captions, missing captions for a sentence will usually appear when interrupted by a different sentence.

When I remove my own .txt and .dat, it should theoretically start using the original valve files, but the subtitles remain broken.

I am working on the EP1 engine, by the way.

Perhaps the .dat was compiled incorrectly, or perhaps it's simply an engine bug? Has anyone experienced this before?