Vista Offline Files Consuming 100% CPU for 2 minutes every few minutes

I am using a brand new HP notebook (Core 2 Duo, 4GB RAM) running Windows
Vista Business. My computer seems to be slowing down every few minutes with
100% cpu being used, for a full 2 minutes, then goes back to normal
condition again. After days upon days of troubleshooting, I narrowed it down
to the CSCService service, which is releated to "Offline Files". I did a
google search on it and discovered that many other people are having this
same issue, but no clear resolution has been found aside from telling people
to disable it entriely.

My problem is that I rely on Offline Files because I use two computers
regularly: My notebook when I'm in the field, and my office PC (also running
Windows Vista Business) when I'm in the office. Previously, it was a
nightmare trying to sync files between my notebook and file server (Windows
2003) at the office. The Vista Offline Files option I thought was the
perfect answer, and it does what it's supposed to do. But at the cost of
consuming my CPU every 2-3 minutes for 2 minutes at a time.

It's highly irritating. It's happening right now as I'm typing this post.
(one letter is appearing every 5-10 seconds).

Does anyone know of a clear way to fix the Vista Offline Files/CPU usage
problem ***without*** disabling Offline Files??? It would be great to use my
computer normally for more than a couple of minutes without locking up.

Oh, and FYI I cannot just temporarily disable offline files and re-enable it
later to fix, as doign this messes up the network connection requiring me to
reboot to see my network files again when I'm connected. So that's out of
the question (I shouldn't have to do this anyway).

Help!