here are the results:

Gaziantepspor (Tur) 3 - 0 Lens (Fra)
Slavia Prague (Cze) 2 - 2 Levski Sofia (Bul)
Spartak Moscow (Rus) 4 - 0 Dinamo B. (Rom)
Dinamo Zagreb (Cro) 0 - 2 Dnipro(Ukr)
Schalke (Ger) 2 - 1 Brondby (Den)
Bordeaux (Fra) 0 - 1 Hearts (Sco)
Utrecht (Hol) 0 - 0 Auxerre (Fra)
Valerenga (Nor) 0 - 0 Wisla (Pol)
Genclerbirligi (Tur) 1 - 1 Sporting Por)
Panionios (Gre) 0 - 3 Barcelona (Spa)
Villarreal (Spa) 2 - 0 Torpedo (Rus)
Steaua (Rom) 1 - 1 Liverpool (Eng)
FC Copenhagen (Den) 1 - 2 Mallorca (Spa)
PAOK (Gre) 1 - 1 Debrecen (Hun)
Basel (Swi) 2 - 3 Newcastle (Eng)
Dortmund (Ger) 2 - 2 Sochaux (Fra)
SV Salzburg (Aut) 0 - 4 Parma (Ita)
Feyenoord (Hol) 0 - 2 Teplice (Cze)
AS Roma (Ita) 1 - 0 Hajduk Split (Cro)
Manchester C. (Eng) 1 - 1 Groclin (Pol)
Perugia (Ita) 2 - 0 Aris Saloniki (Gre)
Benfica (Por) 3 - 1 Molde (Nor)
Valencia (Spa) 0 - 0 Maccabi Haifa (Isr)

Some shocking results.
For me the biggest surprise was the win of hearts at bordeaux
valencia, roma and dortmund will have tough matches in the 2nd leg.

BVB work well when under-pressure. Yeah, our 2nd leg is going to be tough in France. Maccabi Haifa are an underrated side.

yes, Valencia result is a surprise but it should pass-

Gaziantepspor - Lens also has been a surprise. I didn't know this turkish team.

God, some big teams struggling there...