I have a Centrino Duo T2300 with 1 Gig of Ram and loaded the demo version of
Offict 2007 Professional. I have a 15 Meg spreadsheet created in Excel 2003
which I loaded and saved it in Excel 2007. It has a number of graph tabs.
When I press a graph tab it takes almost 5 seconds to switch between tabs.
This was almost instantaneous on 2003. It this the expected performance. In
addition the the memory size increases significantly with each graph tab and
is currently sitting at over 400 Meg.

There are some definite changes with the new Graphics and Charting Engines in Office 2007 and screen updating.

In some cases things work better with an updated graphics card driver (Office has a history of pushing those and it sometimes takes
several months for new drivers to come out). In some cases, turning down the graphics card acceleration settings a couple of
notches makes a noticable difference, but you may want to also check with the folks in the MS Office Excel newsgroup using the link
below for how certain Excel features are impacted in working with 2007 features from converted documents.

================
>>"Concerned with Office 2007 Speed" <Concerned with Office 2007 Speed@discussions.microsoft.com> wrote in message
news:A8426546-0026-48C0-AA81-1585154CBBDD@microsoft.com...
I have a Centrino Duo T2300 with 1 Gig of Ram and loaded the demo version of
Offict 2007 Professional. I have a 15 Meg spreadsheet created in Excel 2003
which I loaded and saved it in Excel 2007. It has a number of graph tabs.
When I press a graph tab it takes almost 5 seconds to switch between tabs.
This was almost instantaneous on 2003. It this the expected performance. In
addition the the memory size increases significantly with each graph tab and
is currently sitting at over 400 Meg.>>
--
Please let us know if this has helped,

Bob Buckland ?:-)
MS Office System Products MVP

>>*Courtesy is not expensive and can pay big dividends<<

LINKS
A. Specific newsgroup/discussion group mentioned in this message:
news://msnews.microsoft.com/microsoft.public.excel
or via browser:
http://microsoft.com/communities/new...t.public.excel

B. MS Office Community discussion/newsgroups via Web Browser
http://microsoft.com/office/communit...s/default.mspx
or
Microsoft hosted newsgroups via Outlook Express/newsreader
news://msnews.microsoft.com