I posted in someone else's thread from a few months ago, and decided to repost my problem on its own.
 
I cannot get TTS-1, nor Roland's Groove Synth, to load their presets properly.  They are garbled, messy sounding, out of tune, you name it.  Bad.
 
I changed my ASIO ESI Julia-XTe Sound driver to MME to see if that was the culprit, but the problem remained.
 
When changing the presets in TTS-1 and then hitting the sample play button, the problem persists.  Regardless of what sample sound gets loaded.  Same thing with Roland Groove Synth.  The sounds play like the oscillators are off and distortion is maxed out.  You can tell a different sound gets loaded, but it's still mangled.
 
In TTS-1 in the System Options, I clicked "Reset", but that had no effect.

Oh, also, I loaded these 2 DX instruments without the MIDI Keyboard connected just to make sure it was not something being sent via my MIDI keyboard.  So I don't know what the issue is.  

I also copied a MIDI track from a Rock song, and pasted it into the Simple Instrument track of TTS-1, and the track played the mangled sounds.
 
Is it possible to reinstall these 2 soft synths all by themselves without touching Sonar and all of the other VST's that are already installed?  I don't have any .exe files to install TTS-1 or Roland Groove Synth.  I don't know what to do.

The exact same setup works fine on my dated laptop (w/ Windows 7 64-bit and a Realtek sound), but not my desktop system, which is far superior, is having this issue.

Lastly, all my VSTi's work fine.  Addictive Keys, U-he's Repro-5, etc.  Only these 2 DX instruments are out of whack.
 
Windows 7 Pro 64-bit
Sonar X3 Producer
ESI Julia XTe
Dual monitors

Your problem is either:
A driver setting problem
A driver problem
A Sample rate mismatch
PC doesn't have enough resources to handle everything
Or all the above
 
My 1st assumption is that you just need to raise your ASIO buffers or try WDM driver mode with a higher slider setting. MME driver mode sucks and if that is the only driver it supports, you need to rip it out of your PC and throw in the closest lake
 
My 2nd assumption is that you have not installed the latest drivers for your sound card and you have not experimented with the ASIO buffer setting to get the best performance for your PC and DAW
 
My 3rd assumption is that I'm way off base and have no idea what your problem is....
 
CJ

Sounds like you run them in high sample rate project (88kHz or 96kHz). Have you tried them in 44.1kHz project?

Both synths support 96kHz although TTS-1 requires every instance in a project be configured for "Light Load Mode" every session.  TTS-1 is documented not to work at 88.2kHz not sure about GrooveSynth.

Thanks guys.  You were all correct.  I was running at 96k.  I turned the Sample Rate down to 44.1 and all is normal now.
 
Thanks so much again!
 
Toddskins