+3  A: 

The point you are trying to centre the map onto isn't a valid Lat/Lon pair: Latitude runs from +/-90 degrees: you're passing in +103.8

seems like you've got your parameters the wrong way around (Lat +1.37, Lon +103.8 puts you in Malaysia)

iAn
Singapore to be more accurate ;)
iAn
This is precisely the problem. The map isn't blank - it's showing you the location you requested (which is off the map).
Chris B
iceangel89