Please don't respond rtfm :-) I'm trying. I've been reading. Watching youtube. I thought I'd try a post to this forum.

I have a brand new UCX (brought it home yesterday). I updated the firmware and got the USB working. I ran my old interface into it  connected using SPDIF with the old device on external clock source. This gives me a total of 10 tracks to record plus I can use the 2 additional headphones jacks on my old device, so using it like a headphones amp. Totally cool.

Next, I used the midi to my old Tascam 2488 and set the 2488 to slave so that now I'm up to 18 concurrent tracks. I can record 10 at 24 bit 96K or 88.2K using my old interface + the RME UCX and the last 8 at 24 bit 44.1 on the Tascam midi sync'd. It should work ok, I'm thinking.

I came home tonight and tried to install the Fireware driver. I have a firewire plug on my computer I have never used and I just wanted to test the interface with it. I plugged it in and installed the latest driver (firewire driver from the website). It shows up in device manager properly after installing the driver. When I try to use Sonar, Sonar just hangs. (Note: it only hangs when using Firewire to the UCX not using USB).

Here's my first question...
- do I have to do something on the device? I notice that you have to switch it to CC for class compliant. The device is not in class compliant mode. It is working with USB. I'm guessing I shouldn't need to uninstall the USB driver before installing the Firewire driver. Any thoughts as to how I might try to get the firewire working would be appreciated. I mainly like the idea of not having to plug the device in to the wall to use it.

Next question,
-10 dBv, +4dBv, low gain... is there guidance for when to use which? Last night I plugged in my guitar and set it to +4 and later to -10. How do I choose between these 3 settings?

Last, when restarting my PC I get questions about exes trying to start and do I want to allow them. How should I best handle this so I don't have to always answer these questions?

Thanks!!