just got my new system with a conroe 6400 and I'm wondering winrar and quickpar still take what seems like too long to me to unpack or fix files. I check the task mgr. and it never uses more then 25% of the cpu power, quickpar was actually using 2% and it had 7 minutes of processing left. Why not use more and speed it up, maybe a limitation of the HD? its a 7200 rpm sata drive. If I remember correctly my Athlon 2700 would take about the same amount of time, maybe a little longer but it used a lot of the CPU to do it.