You know that super long pause when you try to open a PDF, or the annoying update reminders, or the critical security problems that could cause remote exploits http://www.adobe.com/support/security/advisories/apsa08-01.html
Trust me, use Foxit or PDF-XChange Viewer (free) v.1.03 they work so well and so fast. Really, try them. You will never look back.
Michael Ellerbeck 