Only 3 days later: MSFT, three days later, and 4000 miles away: SYDNEY, Oct 20 (Reuters) - Microsoft Corp (NasdaqNM:MSFT - News) said on Sunday a surge in first-quarter sales was not sustainable and forecast tough business conditions ahead. <A HREF="http://biz.yahoo.com/rf/021020/tech_australia_microsoft_1.html" target="_new">http://biz.yahoo.com/rf/021020/tech_australia_microsoft_1.html</A> Fred