Mine did this to me too. Also an '06. I've read elseware that vacume line routing can make all the difference. The line that vent's the fuel tank is the likely culprit. If it is routed over/under something too closely it will kink/collapse when very hot, causing vapor lock. As was sugested, pop the fuel cap and re start to verify.
I'm going to check out my vac. lines when I take the body off for valve adjustment in a week.