Don, was this a fresh install on the laptop? Quicken keeps temporary files that are used during downloading transactions. I move back and forth between a desktop and a laptop. Everything works OK, except downloads sometimes pick up duplicate transactions. That is because of the temporary Quicken files that are not part of the backup.
If it isn't a fresh install, I'd recommend deleting the directory "C:\documents and settings\All Users\Application Data\Intuit\Quicken". This is where Quicken keeps the temporary files. If you are nervous about deleting it, just rename it to old_quicken. Then, install Quicken, but on the installation choices, select "repair". This will create a new clean directory structure to replace the one you deleted.
I've had problems with web connect downloads that corrupt something. When the corruption occurs, Quicken won't run. I've used this procedure several times, and it helped each time.
Hope this helps.