hi, i've loaded sunbird again and find 2 things missing that i find very useful in winpim: 1) the ability to delete a single instance w right-click. (easier than going all the way into exceptions) and 2. the ability to enter an item with no time involved so it is placed first in a list of appts., which shortens the time to get it on there. if these were included, i would find this the absolute best calendar program out there. thanks for listening. no problems with firefox and thunderbird since inception, with the exception of some sites. ( which i then fire up in ie and send them a scathing emai to change their site around!)