I am getting a Runtime Error causing Intellisync to crash, when I try to sync a Compaq IPAQ Pocket PC with Lotus Notes 5 on a Win2000 Compaq laptop. Everything has been working fine for several months, when suddenly in just the last day, I started getting this error when I try to sync my Inbox. Calendar, Contacts, and Tasks sync with no problem. To my knowledge, nothing about the setups on either my PC or my PocketPC has changed (no new apps, etc.) Perhaps one clue as to what is going on, I looked in a file called PtTrace.log in my INTELLISYNC folder after getting the error message. At the end of the file, where the program terminated, it says "Error GUID not found.15001 at D:\MAV851.22\core\gen_libs\iluptbl\iluptbl.cpp line 1994". Does this mean anything to anybody???

Looks like I am in the same boat. My contacts and calender sync just fine, but my tasks cause a runtime error as well. I have the same setup Ipaq 3835, Notes R5. Let me know if you come across anything.