Everything was fine until I tried adding Perfect Space to a guitar buss (not the vox) to blend a couple of trax. 
At least that's about when the weirdness started. 
I also tried a sonitus FX reverb on the guitar buss when P.S. seemed to affect the vox instead. but it didn't help.
The problem is an echo on (only a certain number of) my vocal track clips..a pre-echo actually on a couple of them, that happens before the actual vocal.
I deleted Perfect Space  and the other reverb and re-ran sonar but it's still there.
I closed and reopened the file (Now it says Guitar and Master are set to a silent Out but that's not true)
Still no change to the clips in question.
Another clue is- if i solo the track there is no echo. So it must have to do with another track or buss?
I copied the file to a new track - no joy.
I bypassed the vocal buss to the master but it's still there on these certain clips.
I bounced but it's still there.(Control Z back)

I think the guitar trax seem quieter now too- if that's a clue.
The only link i can think of between the guitars and vox is I have a side chain to duck the guitars under the vox but muting that doesn't help.
Any ideas where the echo is coming from?
Would a jpg of my console help?
Glenn

PS introduces a lot of latency- you can change it's options though

Except I deleted the plug so where is it coming from now?

here's the console view
https://dl.dropbox.com/u/24683934/console.jpg

Ok another thought and probably the biggest clue.
I muted all the tracks individually but I can still hear them!!
(Not if I do the "master" mute at the top..that works normally)
There is some kind of bypass going on on the tracks.
So in fact the only way to get this to sound normal is literally to mute ALL the tracks at the track level.
And it still plays -but with no echo

Do you by any chance have dim solo enabled?

You do seem to have offset mode enabled according to your posted pic.

Maybe you have a send to bus open?

Thanks guys
I tried hitting O for offset but it still does it.
Dim solo not on.. besides why would it just do a few clips and not the whole track?
Can you be more specific about a send to buss being open?

More info.. If I move the echoing clips away from the position (to the end of the track) they don't echo.
It's as if only these clips, and only if in a certain position in the time line are affected.
If I clone the track, it does the same thing.
If I bring the original wave file in, it does the same thing.
If I mute the track it still plays but without the echo.

The other tracks do not echo at that postion

Well thanks guys.
It just seems like a contaminated area of the timeline that affects the one track.
My answer is to move the whole song way off to the right to get past the bad sectors.
I'm not going to be dicking with Perfect Space again I'm thinking.