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I have windows vista home premium and I was wondering whats the big difference between that and vista ultimate? Should I upgrade? I have an hp pavilion 6k series with
100gb hd space
1gb of ram
2ghz amd turion 64 mobile processor
nvidia graphics 288mb shared

I dont know if Ultimate effects any of that(probably doesnt)
But I just posted that just uncase it needed some system requirements
I do photo and video editing, planning to get another gb or ram later

I recently noticed that my CPU idle is quite high and is consistently between 20-30% even when I am not using the computer even after a fresh restart. I have found that it is the System process (not the System Idle proces) which is hogging 20-29% of my CPU.

Acer Ferrari 4000 Notebook
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AMD Turion 64 Mobile 2.0 GHz Processor
1 GB RAM
Windows Vista Buisiness RTM
Broadcom NetLink Gigabit Ethernet 10/100/1000

I used msconfig to disable all startup programs and non-Microsoft services. Upon restart this is what my CPU usage looked like after letting the computer sit for 5 minutes without touching it:

I just installed Windows Vista Premium Home Edition today and I have no sound. I ran a dixdag so I could see what my sound card was but it said I don't have one. Before the upgrade I had sound now I have none. How do I fix this?
Here is my DixDag:
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System Information
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Time of this report: 2/3/2007, 23:15:58
Machine name: GIZMO-JR
Operating System: Windows Vista™ Home Premium (6.0, Build 6000) (6000.vista_rtm.061101-2205)
Language: English (Regional Setting: English)
System Manufacturer: Gateway