Access Issue after Automatic Update

I finally added WinXP SP2 to my system yesterday (along with a lot of other security updates/patches through Automatic Updates) and now my backups and data exports are failing. Further, when I open my "Enterprise Manager" and try to export data ("All Tasks-Export-...") using the Import/Export Wizard, it won't let me select the "Export From" database.Can you give error message here or something?