Xperia X10 :: Hide Old Repeating Calendar Entries?

I attend a large number of meetings which occur on a fixed day of the month every year rather than on a chosen numeric date, e.g. the Second Wednesday in December, the Fourth Monday in March etc.After each meeting is completed I delete the event instance from the Google calendar using a PC-based web browser. I do this because I have noticed in the past and also with the 2.1 version that changes made to repeating events in Calendar do not get properly synced to the Google server version of the data, whereas changes made to them on the server are updated correctly in Calendar

Since updating to 2.1 and re-syncing all my Contacts and Calendar with Google, I now find that on the phone repeating events in the Calendar extend years backwards into the past as well as forward into the future.By that I mean that old meeting entries that I deleted months and years ago on the web, and which were not visible on the phone before the update to 2.1, have now all re-appeared on the handset and go back quite a few years.