What prompts the weakness of the technology sector in the world?

For nearly two months seeing in global equity markets progressive weakness in the technology industry. Relation MSCI AC World Information Technology to the MSCI AC World's fell to its lowest level since the autumn of last year.
More recently, such a clear weakness in the technology sector witnessed in the period May-August 2010, then the behavior of the relative strength of the industry's overall market share against well-facilitated the diagnosis of equity markets. Stood firmly on his feet only when the technology sector began to recover strength before the whole stock market. This scenario may repeat itself even now. The new hole relative strength compared to the technology industry share of world markets suggests that stock market on a global scale are in the wave upward correction lasting from September 2010 until February 2011 reactions does not change this, what we are witnessing in the past three weeks.