GUITAR PRO 3.0 Help

I got the software Guitar Pro 3.0, it worked great, until i get the stupid idea of install Windows XP, and now Guitar Pro 3.0 sounds like a piece of shit.
If someone there can help me, please, meke it.
Help this poor old man to play the guitar.
Thanx

Forums: The Bar,

son, click on 'options' and then 'midi setup' then on your selected sound card click on 'limit pitch variations'

If you've already done that then I'm afraid I can't help you