Pro Tools 7 & Application Switching, PT7 won't play after switching apps Options

[aleman]

I'm running Pro Tools 7.0 on Tiger (10.4.3) on a mirror-drive G4 with dual 1.25 Gig processors and 512 MB of RAM. For the most part PT7 runs beautifully.

The problem I have occurs when I'm running PT7 and then switch to another application (like my internet browser, or iTunes for example). When I switch *back* to Pro Tools after using the other application, I can't play my file anymore. Any attempt to hit the "play" button (either using the spacebar or my mouse) fails.

The "play" button gets highlighted for a split second, and then the "stop" button gets highlighted immediate afterwards and PT won't play. I don't get any error messages.

It's worth noting that this does NOT happen when I switch back and forth between Reason Adapted and ProTools. It's only with my other apps.

Anyone else experience this, or have an idea what's causing it?

Thanks in advance.

[abcdaniel]

I'm just kickin some random ideas here, I haven't got PT7 yet, but it sounds like the same problem that you got in PT 6.X.X, when the computer woke up from sleep. PT then didn't want to play the tracks: Yeah, it was exactly what you described, at least on my computer. The problem was that the computer lost contact with the digidesign hardware (I guess, because the led's weren't lit up as they should).

Do you use your digidesign hardware to play iTunes? In that case maybe PT loses contact with the hardware, when itunes claims it. Just a guess, try to use your internal soundcard in that case, yo!