Cannot change clock source

[Robusto]

Pro Tools 8.0.5
Digi 002 Rack
Win 7

I am trying to hook up a Boss DR-880 via SP/DIF. I get a signal, but it's full of those familiar crackling sounds and there is too much latency delay.

When I go into Setup > Hardware and attempt to change the Clock Source to SP/DIF it just pops back to Internal. Anyone know why it's not letting me change it?

[albee1952]

Is Windows using the 002 as its default playback device? If so, change that so Windows uses the on-board sound card.

[Robusto]

Here's what that looks like right now:

[albee1952]

Okay, What kind of digital output is on the Boss, lightpipe or RCA? If its RCA, change the Optical Format(in Setup>Hardware) to ADAT, which should(might) allow the RCA SPDIF to work(shooting in the dark since I don't know how things are connected). Assuming the 002 is fully working(not a sure thing due to the old "power harness" issue), the biggest reason I know for clock source defaulting back to Internal is because the connection sees no clock. Reasons for this:
1-Roland is not outputting signal on its digital output(is there a setting in the Roland that needs to change?)
2-the cable is bad or not seated(the plastic optical connectors are pretty crappy)
3-the signal from the Roland is at a different sample rate than the session.
Hope something here helps. I clocked my 002 via ADAT(lightpipe) for years with several 8-channel outboard preamps(Presonus D8, Firestudio and Focusrite ISA-428 with digital option card)