I recently upgraded lotus notes to 8.5.1 on a PC. I do not have the upgrade for MAC yet. Instead Lotus Notes on the MAC will adjust to accommodate the PC upgrade (one of my MACs has shown updates). I use 3 MACs and 2 of them (laptops) are not showing updates and are now showing errors. The mail page, will list replication on every line instead of Sender, subject, date, size, etc for each email. I also get about 10 error messages before i can send an email. My calendar is blank. Anyone else had this problem and know how to fix, any suggestions?