Trend Micro have been having problems over the past weekend. I am having problems just running the online scan. If you are interested, do a general web search for "trend micro problems" or look here :-
http://news.zdnet.co.uk/security/0,1000000189,39196220,00.htm
http://news.zdnet.co.uk/security/0,1000000189,39196220,00.htm