Hey everyone. I recently was forced to upgrade to a MBP from my 'old' MBP running snow leopard. The new one (quad core, LION) seems to not be playing as nice with my MOTU 8pre units. Here's the rig: Its wired FireWire: Top 8pre->Lower 8pre->MBP. I've made the aggregate driver as in the past. Now I'm getting digital distortion on the lower unit when recording. It happens gradually, building in its nastiness...the first twenty minutes or so has no problems, after that, it gets gritty, distorted and really ugly. From what I gather, this is a 'synch' problem between the units...in Leopard's Aggregate Device setup you just chose 'resample' and it worked fine. In Lion I have 'Drift Correction' selected on the units, which should do the same thing. Any words of wisdom, advice, etc? Its only on the lower unit (the middle unit in the daisy chain) and the top unit records clean. I'm not using any Midi at all, just straight audio interface. Everything maps correctly in Cubase, and I can use all inputs and outputs for each unit. Any help? I'd like to avoid going to the 'lightpipe' setup.