I am an experienced 2003 excel user and have noticed that I am running
into similar problems now that I using 2007. If you work on a large
file with multiple sheets for an extended period (including building
graphs) the program begins to experience resource issues. Now I get
one of two problems - either I get a resource error and the screen
refuses to refresh or I experience a problem where the sheet I am
working in will all of a sudden begin scrolling to the right. There is
no way to stop this, that I have discovered. When it reaches the end
of the sheet - I cannot return to any other part of the sheet. I can
use ctrl home which takes me to A1 but the sheet automatically begins
to scroll right until it once again reaches the end. I had this
problem occasionally with 2003 but this has become a frequently
occuring problem with 2007. Closing the program and reintializing does
not solve the problem. The only way I have been able to fix the
problem is to reboot. Hardly a satisfactory or efficient solution.

Please don't give me the usually helpdesk schmuck about a stuck scroll
key etc. This is not a keyboard problem - it is definitely a program
issue and I suspect is linked to the OS and resource allocation
procedures. I am curious if others experience a similar problem and
given that I have had similar problems with 2003 - curious why they
would release 2007 without a fix.

For the HW buffs who will want to tell me it is a hardware problem: I
am running a Lenovo T61, with Intel Core Duo T7500 running at 2.2 Ghz,
2GB ram - HDrv 93 GB (26% free).