Go to igoogle.com and install their desktop and homepage. Use their calendar gadget.
You can access your calendar from any browser, add or change appts and it will automatically show up on the calendar gadget on your desktop. Alternatively you can add of change an appt on your desktop gadget and it will automatically sync with your online calendar. Of all the ones I tried I like this one the best because it simply works
__________________ Windows 7600 Ultimate 64 bit , AMD 64 X2 2.20 GHz, 3G Ram, Biostar TForce 6100 MB, Radeon X1650, Main Drive WD 640G, Backup Drive WD300G , Antec Earthwatts 500W |