Hmmmm....Your Audio interface(UA25) IS the DR...It will not show up DR880, as you are using the UA25 as it's interface. I don't know anything about the UA25, but it should have Asio drivers. I would try them and definitely use your UA25 as your input\output devices. It's been awhile since I tried the USB cable, which I might try again here soon. I thing it shows up in the devices as Boss DR-880...I can't remember though...hope this might help some...I'm trying! lol David

Ok, problem solved...at least this one...I know there will be plenty more...But the cakewalk tech help gave me this explanation plus a bit of help from chuckebaby..
Problem/Questions: How to hear sound from MIDI.

Solutions: Go to Insert | Soft Synths -> Cakewalk TTS-1. In the Insert Soft Synth Options, make sure the box for Simple Instrument Track is checked, then click OK.




Next, select the Cakewalk TTS-1 Track so it displays in the Inspector




Go to Edit | Select -> All to highlight all of your tracks.




Then in the In/Out section of the Inspector, click the lower of the two drop boxes (for output) and choose Selected Track Outputs. Drop the box for MIDI Outputs and choose Cakewalk TTS-1 and hit OK. This will then change all your MIDI track outputs to go to the Cakewalk TTS-1 which will output as audio.

Don't understand why it works, it just does and now I can control my volume...Thanks everyone for helping out, I'm sure I'll be back for more soon....