Motorboating in X3

I've discovered that when I quit working in X3b for a while, about an hour, it will begin "motorboating".  This is with a project begun in X2 that only uses PC modules and plug ins that came with X2.  I haven't had this problem since Sonar 4.  My driver for the FF 400 are up to date, and I have X3b installed correctly.  This seems to be the only glitch that I've found, so far.  I researched this topic on Google, but found very little information.  If anyone can help or suggest a work around, I'd appreciate it very much.  Thanks in advance.
 
BTW, I'm in 64 bit mode all the way.
 
I should add that I'm using Superior Drummer 2 (which is up to date), and I've never had any problems with this program before.

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Hi Lynn,
 
If you are using the new Cake Tape emulator in the Pro Channel it seems to be associated to this.  There have been other posts to this effect as I recall. 
 
Cake did chime in on one of the posts, so I think they are aware.

@STinGA, yes, I am using the new tape emulator!  I'm glad to hear that CW is aware of this.  I will eliminate the TE from the project and see if it continues.  Thanks for the heads up.
 
@ ampfixer, all my power settings are set to never time out.  Thanks for your reply.

brundlefly
Does it not do this with X2a also? If it does, I would suspect it's a basic issue with drives or other systems going to sleep or the audio driver changing states without notifying SONAR or something like that. If it doesn't do it in X2a... I dunno. I think the biggest audio engine-related changes in X3 are associated with Always Stream Audio Through Effects setting in Preferences. It could be interacting badly your environment or with some particular plugin in the project. You might try disabling it, and see if it makes a difference (other than FX tails not playing out on stop).

Thanks for responding.  No, it has never happened in X2 nor any version of Sonar going back to 4.0.  As noted above, it may be related to the tape emulator in PC.  That was the only addition I made since X3.  I will eliminate that from the project and report back later.

wizard71
+1 tape emulator

I eliminated TE from the project, and there has been no motorboating after 3 hours of being idle.  I hope that is the answer.  CW if you're listening in, I hope you take note and fix this minor problem.  From the comments that I've read, TE seems to be popular, and I would like to have this option available without the hassle.  I'll send in a bug report, anyway.