LONDON -- The

FTSE 100

turned a 54-point gain into a 44.3-point loss, or 0.7%, to close at 6,165.0 as the

Dow Jones Industrial Average

traded lower.

Darling of the tech sector

Psion

took a late bath and slid 842p, or 17.4%, to 52.00 pounds after Goldman Sachs decided that the share price has risen enough on the back of its

Symbian

deal with

IBM

(IBM) - Get Report

and the bank is having "Problems in valuing the price-to-story ratio."

Durlacher

also fell away in late play, losing 352p, or 6.9%, to 36.20 pounds, while

Infobank

fell 67p, or 7.3%, to 39.87 pounds. Not to be outdone,

BATM Advanced

didn't advance, disappearing down the plughole instead to lose 310p, or 5.2%, to 60.45 pounds.

The crazy gang still retained a few members however.

Baltimore Technology

jumped 575p, or 4.8%, to 125.00 pounds.

BAA

(BAAPY)

, although well off the top, warmed to the

story from

TSC UK

that the company is thought to be in a good position to be the next operator of JFK and LaGuardia airports in New York, and the share price finished 16p higher, or 4.0%, at 414.

The Continent's stock markets closed out the week mixed. The

Xetra Dax

in Frankfurt closed down 6.75, or 0.09%, at 7573.78 and the

CAC 40

in Paris finished 92.24 lower, or 1.5%, at 6062.72.

"Things seemed kind of confused out there today," said one trader.

James Bond's automaker,

BMW

, was one of the few stocks in Frankfurt to book solid gains, as old rumors surfaced about a possible takeover by

Ford

(F) - Get Report

. BMW ended up 1 euro, or 4%, at 26.20. Other auto shares were mixed.

Volkswagen

(VLKAY)

closed up 0.19 euros, or 0.4%, at 45.90 and

DaimlerChrysler

(DCX)

finished down 0.35 euros, or 0.5%, at 65.34.

Financial issues were performed on a case-by-case basis.

Commerzbank's

(CRZBY)

closed down 0.20 euros, or 0.5%, to 39.55,

Deutsche Bank

(DTBKY)

ended up 0.16 euros, or 0.2%, at 80.55 and

Dresdner Bank

finished up 0.45 euros, or 0.9%, 51.

Telecoms were able to climb higher Friday, with

Deutsche Telekom

(DT) - Get Report

closing up 2 euros, or 2.3%, to 89 and

France Telecom

(FTE)

ending 0.90 euros higher, or 0.6%, at 164.

But techs sold off late in the day, leaving

SAP

(SAP) - Get Report

8.05 euros lower, or 0.9%, at 870.95 and

Epcos

(EPC) - Get Report

down 0.99 euro, or 0.7%, to 144.01.