iCal deletions made on MBP not synching to iPhone

[PieMac]

I've noticed that any deletions of events that I make in iCal on my MacBook Pro don't sync to my iPhone...all the events are still there. I've tried re-setting the iPhone, reverting back to factory default, deleting the back-up in iTunes, checking the "replace all info" on iPhone with that on computer option, re-setting my iSync history, and repairing permissions.

Anybody else have this problem and know of a fix?

Thanks in advance for any and all help!