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Hi Tmac.
I assume you are using the released version and not the beta version of NIS?
And your OS is Vista Home Premium SP1?
The CPU Usage UI relies on the operating system performance counters.
On doing some web searching I found a few references to performance counters not working, either being manually turned off, or the registry being corrupt.
Before we look at NIS, I'd like to make sure the performance counters on your system are working.
Please refer to this article, and see if the Windows Vista Performance Monitor is working.
Here are the steps that will add the two Norton processes and the overall CPU usage on the graph:
Run "perfmon.msc".
Select the "Performance Monitor" node.
Click the "green +" to add a performance counter.
From the top list select "Process" (you many have to scroll up).
Click the dropdown arrow, and select "% Processor Time".
From the bottom list select "ccSvcHst" and "ccSvcHst#1".
Click "Add".
From the top list select "Processor" (you many have to scroll up).
Click the dropdown arrow, and select "% Processor Time".
From the bottom list select "_Total".
Click "Add".
If at any point you do not see the performance counters or they do not work, we need to figure out how to fix your system's performance counters.
If the performance counters do work, we need to figure out why the NIS CPU Usage UI is not working.
Please let us know.
Pieter
Hi Tmac 
Do you use the - Vista ... CPU - Sidebar Gadget ?
If you don't...
Just try sticking it on your Sidebar for a while.
If the Vista CPU Gadget works,
I can't see why the Norton one shouldn't.
Tip!
I always use the Vista CPU Gadget.
It helps me know whats going on with my computers 
However...
Whats even better, and work perfect along side the Vista - CPU Gadget...
On My Laptop!
For - Core 2 Duo : http://gallery.live.com/liveItemDetail.aspx?li=f5b13626-b266-4334-b2e5-157bd66ca5af&bt=1&pl=1
On My Desktop!
For - Core 2 Quad : http://gallery.live.com/liveItemDetail.aspx?li=febd64a1-2031-4452-8cfa-250a92623c5a&bt=1&pl=1
You Get To See Your Exact RAM Usage Too! 
Note!
Make sure you pick the correct one for your - CPU
Core 2 Duo = 2 Cores
Core 2 Quad = 4 Cores
Hi, thank you so much for your help, I followed your instruction,it says:Microsoft Manangemnet Console: MMC can not initialie the snap-in.
I again click green +" to add a performance counter, I can't find "Process" from top list, thus ,can't go forward, thanks~~
There's possibly something wrong in my system
Yes, I installed the newly realeased NIS2009, VISTA HOME PREMIUM SP1, CPU meter works in my another pc running XP SP3.
Cheers for your continous help. I appreciate it...
HI, thanks
My vista CPU gadget works fine, but NIS2009 CPU meter is all blank all the time...
The NZ Support member remote control my PC to reinstall, but still doesn't work.
Cheers~~~
Tmac wrote:Hi, thank you so much for your help, I followed your instruction,it says:Microsoft Manangemnet Console: MMC can not initialie the snap-in.
I again click green +" to add a performance counter, I can't find "Process" from top list, thus ,can't go forward, thanks~~
There's possibly something wrong in my system
Yes, I installed the newly realeased NIS2009, VISTA HOME PREMIUM SP1, CPU meter works in my another pc running XP SP3.
Cheers for your continous help. I appreciate it...
Ok, so it seems that your Windows performance counters are not working correctly, that would explain why NIS cannot display any information.
I will ask some folks in the office if they know how to fix broken performance counters.
Pieter
We found several Microsoft KB articles that deal with broken performance counters:
http://support.microsoft.com/kb/300956
http://support.microsoft.com/kb/152513
http://support.microsoft.com/kb/248993
http://channel9.msdn.com/forums/TechOff/59699-perfmon-counters-are-corrupted/
As explained in KB300956, you can restore a backup of the performance counters:
Open an elevated command prompt (right click and run as administrator)
cd %systemroot%\system32
lodctr /R
Reboot
Please let us know what you find.
Pieter
Hi, thanks you so much for your help ,now it works well.
I really appreaciate your help. Cheers!!!
I'm glad to hear it helped.
Pieter