The tech sector served up a couple of after-hours winners in a generally mixed postclose session Monday.

First Solar

(FSLR) - Get Report

was among those gaining ground, after the solar power company inked about $1 billion worth of module supply agreements with subsidiaries of Australia asset manager

Babcock & Brown

and Netherlands-based sustainable energy company

Ecoconcern

. The precise value is subject to currency exchange rates throughout the contract period, which runs from 2008 through 2012.

The agreements add 557 megawatts to the Phoenix-based company's contracted module volume, so First Solar will begin construction on a fourth manufacturing plant in Malaysia in the latter half 2009. Shares were up $9.47, or 6.4%, to $157.57.

DivX

(DIVX)

, meanwhile, leapt on better-than-expected third-quarter results and its

appointment of Kevin Hell as CEO. Hell had been acting CEO since July.

The San Diego-based company, which makes video-compression software and other products, reported non-GAAP income of $5.9 million, or 17 cents a share. That's a nickel a share over analyst estimates from Thomson Financial, which called for earnings to stay flat year-over-year. DivX also projects fourth-quarter earnings of between 16 cents and 18 cents a share, which would beat by at least 2 cents.

Shares surged $1.52, or 12.7% to $13.50.

Among the tech losers, however, was

Sun Microsystems

(JAVA)

. Shares retreated, even though it

swung to a better-than-expected profit of 6 cents a share, excluding a restructuring charge. The Santa Clara, Calif.-based network computing infrastructure maker also said revenue rose 1% from last year to $3.22 billion, which came in slightly under the $3.27 billion expectations.

Sun shares were down 2.6% to $5.56, erasing nearly all of their gains from today's regular session runup.

Limelight Networks

(LLNW) - Get Report

, a purveyor of content-delivery network services, pegged fourth-quarter sales at between $28 million to $30 million, at least $1 million under consensus. Third-quarter results beat on both ends, but shares of the Tempe, Ariz., company were still sliding 9% to $11.40.

Elsewhere in negative territory,

Career Education

(CECO) - Get Report

lost 3.9% after third-quarter continuing-operations income plunged 25% from last year to 21 cents a share. Wall Street expected a profit of 23 cents a share. Revenue sank 5.6% to $404.4 million, which just misses the mean. Shares of the Illinois educational services firm were recently changing hands at $33.51.