I\'ve built a few athlon systems. Athlons are fine for compatibility. I\'m convinced however that part of AMD\'s business plan is to make it easy to burn out CPUs so you have to buy another. I\'m still researching why this last one got fried. Given the sheer amount of power current processors use it\'s a daunting task to keep CPUs cool quietly.
I have a copy of Gigastudio 96 working on an AMD 1 Ghz and have no problem at all in getting all my voices and normal use.
The only AMD related problem I ever encountered was trying to use an Asus motherboard and a Maxtor HDD with it. These are not very compatible, as was told to me by the company that build my PC since they had been having a lot of problems recently (including mine). Using an IBM hdd solved my problem and my system has been working fine since then.