golferboy - Thanks for your quick reply!

I am using Outlook (MS Exchange). I also encounter it once in a while, but the impact is so problematic that everytime I do a soft reset I'm nervous that I might some someone else's meeting to tens of ppl around the globe...
Also, I couldn't find any pattern to why it sends one meeting and not others.

Please do update if you have any news on this. If I can further supply any relevant information that might help RIM with solving this, I'll be more than happy to assist.

Thanks again.