Hi there, I'm hoping someone can help me out with this issue. I hope this is the right spot to post this. I'm working with Reaper in Windows XP SP3 on a Dell Optiplex dual core 2.6GHz with 3GB of RAM. I was working with an M-Audio Delta 1010LT, but I don't have that anymore, so I picked up an Echo Layla (the older 20-bit one). I've installed the Layla, and the driver (v6.11 from the Echo site) seemed to install with no problem. I first tried to set up the inputs/outputs with the "Echo WDM ASIO" driver. But when I hit play on any project, I get this message: "There was an error while opening your audio hardware: Error initializing buffers." Then I tried to use the ASIO4ALL (v2.11) driver, and it won't recognize my inputs/outputs. In the ASIO4ALL configuration screen, there's a red X over each of the inputs/outputs, and when I hover the mouse over one, it says: "Status: Unavailable! In use by another application? MS GS Wavetable Synth enabled?" Any clue as to what the issue could be? I've already tried re-booting and re-installing the (Layla) driver to no avail. Thanks much!