Chairman and CEO Scott McNealy , along with Ed Zander , president and COO, and Michael Lehman , vice president of corporate resources and CFO, will be in the hot seat while they give Wall Street a heads up on how Sun's business is weathering the slowing economy.

FORBES: Forbes Forecast: Brocade Is Wall Street's Latest Victim

Michael Hulme at Lehman Brothers said the weakness of the figures were hard to square with robust anecdotal evidence from the Confederation of British Industry, John Lewis and others.

BBC: Modest May for shoppers

"To the extent that consumers end up either using the majority of (the refund) to pay down debt or simply to save for a rainy day, obviously the economic impact is going to be a lot less, " said Michael Gregory of Lehman Brothers.

CNN: Bush to sign tax cut bill Thursday