OK Inquiring minds. Here it is. If your Krystal is working on your motherboard, there is no problem that you are experiencing. It is only with new motherboards using the VIA or Intel 815 chip sets that Krystal will simply FAIL to operate.
Chas, we currently have no hard facts on what will change as we remove DMA bus mastering. Larry doesn't think there will be any down side. Only testing will determine this.
Don't expect any improvement in the VU updates. We are not taking the time to rewrite this code.
Let me put it this way to you... if this fix did not work, Krystal would only work on older BX and earlier motherboard chipsets, and it will fail to work on ALL modern motherboards. What would that mean? Quite simply...
the end of Microeditor! 
Now that you have gulped good and hard, do you understand the magnitude of the success of this test? I Thought so. 