After updating the audio driver, I pasted the following text to myself in a dcc chat:

Code:
Hello1
Hello2
Hello3
Hello4
Hello5
Hello6
Hello7
Hello8
Hello9
Hello10
Hello11
Hello12
Hello13
Hello14


Once again, after speaking "Hello11", the agent froze up. After the agent froze, I typed "test" to myself in the same window and this time mIRC locked up, as well. I had to kill the agent to continue using mIRC.