Also spend some time periodically studying your Event Viewer's Administrative View to research repeat errors. Google gets hits on almost any error when you type in some of its text and identifiers. If something needs fixing, it will often show up there.
Always send problems to MS for possible fixes. You may even have some cued by typing "Problems" into Start Search box.
To know how you're hardware is adjusting to Windows 7, generate the WEI score, then click through it at Computer>Properties link to Advanced Tools to Generate a System Health Report.