Okay guys,
i keep getting informed about Durlag's Tower, but it hasn't shown up on the map, even though it says that "world map has been updated" i uninstalled and reinstalled...but it keeps doin it

what should i do?

Have you travelled to one of the areas next to the tower or talked to the guy in Ulgoths?
Do you mean with reinstall, you reinstalled the complete game (BG1 and TotSC). When you did, I don´t understand, why you cannot find the tower, since it shows up in my games as soon I leave the Nashkellmine (to the west edge on the exit area).

I believe you have to approach the Durlag's Tower area from an adjacent area in order to make display.

If you exit the north side when you come out of the Nashkil mines then it should show up on your map.