Upgrade to Adobe Acrobat Reader 7
Do you use Adobe Acrobat Reader 6.0? Are you tired of waiting forever for Acrobat to load when viewing even the smallest PDF? Then you need to upgrade to Acrobat Reader 7.0:
Experience better overall performance for faster launch times and real-time zooming and panning
I saw that this was released a few weeks ago but I was a little gun-shy after my experience upgrading to 6.0. The launch times were unbearable with 6.0. I ran some tests and with 6.0.1, it would load in 25 secs in IE and 21 secs in Firefox. Now, with the new version, it loads in right at 9 secs the first time.
You can download the new Adobe Acrobat Reader 7 here or I ran across this post that had some additional useful information.