Shares of Aladdin Knowledge Systems ( ALDN) were among technology's losers Monday, falling 13% after the software company cut its third-quarter sales outlook.

The company now expects sales of $19.5 million to $19.7 million, down from previous guidance of $19.8 million to $20.5 million. Analysts polled by Thomson First Call had been expecting sales of $20.3 million. "Year-over-year growth remains strong, while the timing of certain new business around the end of the quarter played a role in updating our top line forecast for the third quarter," the company said. Aladdin continues to expect earnings of 22 cents to 25 cents a share. Analysts are expecting earnings of 24 cents a share. Aladdin will release third-quarter results on Oct. 27. Shares were recently trading down $2.75 to $17.88.

Xilinx ( XLNX) fell 15% after the chipmaker lowered its second-quarter sales outlook. The company now expects to post a sequential sales decline of 1% to 2%. Previously, the company said it would post sales that would be flat to up 4%. Xilinx attributed the sales revision to weakness in its turns business and mainstream products and a double-digit sequential sales decline from companies with manufacturing operations in the Asia Pacific region. Gross margin is still expected to be between 61% and 62%, the company said. Analysts had been expecting sales of $415.3 million, up about 3% sequentially from the $405 million in sales that Xilinx posted during the second quarter. Shares were trading down $4.07 to $23.05.

Shares of Unisys ( UIS) fell 7% after the company cut its third-quarter earnings forecast. The company, which provides information-technology consulting services, now expects a loss of 16 cents to 18 cents a share. Excluding a pension expense and other charges, the company expects a loss of 5 cents to 7 cents a share. Previously, the company said it would post a profit of 4 cents to 6 cents a share. Analysts had been expecting a loss of 4 cents a share. Unisys expects sales of $1.37 billion to $1.39 billion. Analysts had been expecting sales of $1.5 billion. Sales were hurt by lower-than-expected results in its services and technology businesses. The company said it is still analyzing the reasons for the third-quarter shortfall; Unisys will discuss its plan to improve results when it announces earnings on Oct. 18. Shares were trading down 46 cents to $6.37.

Brocade Communications Systems ( BRCDE) traded actively after the company said it received a filing extension from Nasdaq. The Nasdaq listing qualifications panel granted Brocade a conditional extension until Nov. 15. At that time, the company must submit its 10-Q filings for the quarters ended April 30, 2005, and July 30, 2005, and all restatements. "In granting the company's request, the panel noted that this extension was at the outer bounds of the panel's discretion to grant extensions and that the panel would not entertain further extension requests should the company be unable to make its filings by the Nov. 15, 2005, deadline," Brocade said. Shares were trading down 3 cents to $3.88.

Flir Systems ( FLIR) fell 12% after the thermal imaging company warned that third-quarter results would fall well short of Wall Street expectations. The company expects earnings of 21 cents to 23 cents a share on sales of about $112 million. Analysts had been expecting earnings of 28 cents a share on sales of $131.6 million. "Third quarter revenue was disappointing, due largely to lower than expected book and ship business in our imaging division, and lower than expected European revenue in our thermography division," the company said. Flir said that its imaging division experienced "very good" bookings in the quarter, which resulted in a record backlog, but the company does not expect to "recoup the third quarter revenue and earnings shortfall in the fourth quarter," it concluded.

As a result, the company cut its full-year outlook for earnings and sales. Flir now expects full-year earnings of $1.12 to $1.17 a share on sales of $510 million to $520 million, down from previous earnings guidance of $1.17 to $1.22 a share on sales of $545 million to $555 million. Analysts had been expecting earnings of $1.20 a share on sales of $548 million. Shares were trading down $3.31 to $24.57.

Other technology movers included Cisco ( CSCO), down 36 cents to $17.27; Microsoft ( MSFT), down 22 cents to $24.37; JDSU ( JDSU), up 3 cents to $2.17; Intel ( INTC), down 43 cents to $23.39; Lucent Technologies ( LU), down 1 cent to $3.18; Sirius Satellite Radio ( SIRI), up 13 cents to $6.55; Sun Microsystems ( SUNW), down 6 cents to $4.11; Applied Materials ( AMAT), down 8 cents to $16.80; Oracle ( ORCL), down 10 cents to $11.88; Dell ( DELL), up 72 cents to $32.80; and Apple Computer ( AAPL), down 8 cents to $51.22.

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