I never realised til recently that you can disable the McAfee splash screen on startup. Hopefully the following will be useful info for those Windows users that want to do it, but be very careful with regedit.
Disable the splash screen.
Click Start, Run, type regedit, and click OK.
Navigate to and select the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\McAfee\DesktopProtection\
In the right pane, double-click bSkipsplash and set the Value data to 1.
NOTE: To re-enable the VirusScan splash screen, change the Value data back to 0.
Exit the Registry Editor.