Supplies are likely to be affected, and Apple's shares are falling
Glitches in the stock exchange's trading system could have been avoided
Today's problems follow the new exchange going live
But there is $7bn in orders from foreign investors
This follows Apple CEO Steve Jobs saying yesterday that he would take a leave of absence to focus on his health
Goldman Sachs said to be in talks with the web startup amid reports of a share sale this year
An internal investigation has been launched, and relevant authorities have been contacted
System is the fastest in the world, according to the LSE
Baikal manager chosen to run technology for the trading platform