thanks Scorpius, I shall try what you suggested. Although I haven't had the problem the whole day today, I will wait a while before I rule it out as bug not occuring now.

Also, I have a suggestion. Whenever another person receives the chat and the second tick comes (after the person comes online) his/her chat window pops to the front. It is slightly frustrating when you are doing something else and a window comes from nowhere. Now that we have chat history, is it possible for you to remove this feature?

Thanks
Aman