Hi Jimmy and welcome.
Two things about running GTP3 on Vista. You will need to run it in compatibility mode and Vista is not officially supported.
In order to set GTP3 to run in compatibility mode go to
Start>
All Programs>
Cakewalk > and
right click on Guitar Tracks Pro 3. Select "
Properties."
In the Properties Window select the "
Compatibility" tab and click on the check box next to "
Run this program in compatibility mode for:" and in the drop down select "
Windows XP SP2." In the "
Privilege Level" section of the same tab select "
Run this program as Administrator." The select "
Ok."
One of the things I found in using GTP3 on Vista, at least on my machine is it only likes 2 kinds of drivers. ASIO and MME. WDM drivers just don't work right under the Vista environment using GTP3. So what you will want to do is go to
Option > Audio go to the
Advanced tab and select
MME for your driver type. Click
Ok and then exit out of GTP3. Reopen the program. and go back to the
Options > Audio selection. Now on the
General tab select you sound card. Set the
Buffer Size to fast. If the play back starts to chunk go back to the audio option and increase the buffer size till the chunking goes away. Be aware that the internal audio card is not designed to handle pro-audio and that latency will be an issue.
I like others here recommend that you use an external audio interface. You can get them for anywhere around $35 to $200 for a decent low cost card that will reduce or eliminate the latency issue.