G'Day Omar,
Yes I know I said I would quit this game bit the challenge is to good to quit.
This is what I have, I use Firefox version 3.6 and I have no trouble with boat position, The wind is a different kettle of fish.If I use your download Grib files from NOAA
I get the correct wind cell size of 1/2 degree or 30' size, however the time stamp is incorrect by 2 hours therefor the wind speed and direction is wrong.
Next importing winds from vrtoutoulz as you suggest (
http://www.vrtoutoulz.fr/TIME+2/early), on checking Pacotools web site (
http://pacotool.fr) you will find the wind grid and speed is the same as the game , wind grid is 1/2 degree and speed is correct. But on hitting F2 to import this wind into VRTool the wind grid is now 1 degree and incorrect. I think there is a problem with your program?