only one Core shows

[Golden-Dragon]

hi i got everything working.. but then i use transmission it hangs up and i need 2 restart my pc.. anyway... i use azureus now and it works a little better...

the thing i really wanted to get help with is that i got a dual core cpu amd and it only shows one core.. in the link below the specs for my motherboard and cpu is shown

http://img530.imageshack.us/img530/6095/gonblicksbild2008022523ff0.png

any one know how to get the both cores up and running ?