@ashleygrobler04:
Are you using DECtalk 4.3? If so, if something's in the DEMO.TXT file, and you open it with speak43.exe, it copies the contents of what was in that DEMO.TXT file to your clipboard, so you will have to delete what's in that demo file and paste your new code into that file, then save it, then open it with speak43.exe. If you are not using DECtalk 4.3, and instead you're using DECtalk 4.62, 4.64, 5.0r2, 5.0r3, 5.0HLSYN or FonixTalk 6.1 in that package, the problem could be caused because of phoneme changes, since the L phoneme was changed in newer versions of DECtalk. To make the L phoneme work, you would have to substitute the L phoneme for the ll phoneme.
Hope that fixed your problem.