That's why I ran task manager to see what was up. Nothing was running except Aces High.
Under the applications tab of tack manager, yes? Under the prossesses tab I bet there is several things on and this is what may need attention.

I don't get anymore than 50% cpu usage regardless of which of my 2 systems I'm using (P4 2.4 HT xtreme or dual core 2.6)...since the 3rd patch I get minor millisecond stutters here and there...75 frames...80 - 90 megs of video ram used.
The original intent of dual CPUs was to dedicate 1 to a large program and the other to system mangment and background tasks. If you are using 50% of one CPU for the game, you have a problem. If you are using 50% of the combined power of both CPUs, that (I think) is expected.
You may however have some background tasks on the same CPU as the game.
I just re read the quote. Is the P4 2.4 HT xtreme a single CPU?
My XP machine I play on has a single CPU and goes to 100% with the game on. I'm on 56K dialup at the house, so I use a XP loptop and wireless at work to download with. It has a dual core and when I start the game on it, I get 50% on the one CPU usage meter. Haven"t found a way to get 2 meters. On the two CPU Usage History grafs(use the View button if you only have 1 graf) one is higher than the other. What concerns me is that both are bouncing around quite alot.
So my quiestions are: Is this normal? And is there a way to pick what processes go to which CPU. Does not matter to me. I don't play on the laptop. But it might be helpfull to others.