[Pete Exxtreme]

I would think that this processor has 2 cores rather than Hyperthreading, with is far better as it's a REAL dual processor. If carrara don't see them, i would check i the HT option is activated, if so maybe that your PC BIOS is not (yet) configured to use the dual core ???

Something also i wonder is if you're using XP home rather than XP Pro, if it can see dual-proc ? XP home can see HT... but not sure for 2 cores ???
Just my 2 cents...