"Failed to insert Soft synth" Please help (Pentagon 1)

Something changed, so you may need to insert your sonar DVD and install just that synth with a custom install.

First see, if its in your plugin manager under the DXI menu. But even if its there, it still can be corrupt, so an install may be needed
Cj

Just to be sure I would try to insert through Synth Rack, too, before re-installing.

If i try to add it through the FX bin i get this message: Cakewalk missing plug in stand in

Plug in: rgc: audio pentagon I

This plug in is missing or improperly installed on your system. the original plugin state is saved by this stand in and will be restored if you save the project and subsequently load it on a system where the plug in is porperly installed.

intuitiveleap
I get this error when I attempt to use one of the pre-loaded templates on the startup screen.

Which template ?
 
I get errors on several templates because what they need isn't installed on my system (Sound Center, MS GS Wavetable Synth, "C:\Cakewalk Projects", etc.).
 
So you must be selecting a template that makes use of Pentagon, though I can't find one of mine that does.
 
EDIT: OK, I found it, but it's not a template, it's the Tutorial Project "Instruments Platinum.cwp".
 
It's probably an old example project left over from the days Pentagon was included.  There's a lot of that stuff lying around.
 
I also get the missing Rex loop and RXP's Groove Browser in the project is completely empty.
 

duplicate post...

Pentagon has cool sounds so you want it to work.  I don't run it as Admin, and it works fine (CAVEAT: if you flip through the presets fast enough, you can get it to crash Sonar and your audio driver and almost blow your monitors up before you can hit the kill button -- bass monitor speakers looked like they were trying to bulge out and smack me in the face.  If you try harder to get it to crash, Pentagon can jam up the output meters with a sustained inaudible high frequency you won't notice until smoke pours out of your tweeters ... there goes a couple hundred bucks!  But other than that, it sounds great.)
 
The dll should reside inside "C:\Program Files\Cakewalk\Shared DXi\Pentagon I" folder, and the dll size should be 2,935 kbytes using Windows Explorer.  There should also be a P1DXi.dll in that folder with size of 312 kb.  There should also be a subfolder in there entitled "rgcaudio Pentagon I".
 
Do a search of your whole harddrive for "Pentagon" and see if you have some duplicate pieces floating about.  If yes, move them to a temp folder inside of MyDocuments where Sonar can't find them.  Rescan. 

Ok, your registry may be fine but check what's here:
 
HKEY_LOCAL_MACHINE\SOFTWARE\rgc:audio Software\Dxi\Pentagon I
 
It should have a string value called Path set to something like this:
C:\Program Files\Cakewalk\Shared DXi\Pentagon I\Pentagon I.dll
 
IN ADDITION, you may need to run SONAR as admin for it to load.  
 
Keith

Yeah, that's a nifty approach (setting the subkey to allow anyone to access it).

 
It's probably worth repeating that intuitiveleap doesn't have Pentagon.
 

I had tons of probz with Pentagon a while back. I even bought it separately at one point but somehow SONAR got confused and wouldn't load older projects that had it. New ones would load fine but un/re-installing it didn't fix anything. Luckily I had a demo bounced down with the sound pentagon made isolated so I turned it into a sample instead.