I have played on gg a lot. The problem was that gg(with the exception of Indian rooms) uses TFT(the Frozen Throne) v1.21 and DANCOM has 1.20e. So i wrote a guide on how to switch between the 2. Switching takes only 5 secs(3 for copying and 2 for launching frozen throne again)
1.First you download the 1.20e dlls from here
http://rapidshare.com/files/36644962/120e_only_DLL_.rar2. Create two folders outside your Warcraft3 folder and name them '1.21 dlls' and '1.20e dlls'.
3. Extract the 1.20e dlls to its respective folder.
4.There will be 4 dlls in your current Warcraft 3 floder. Copy them to the folder named 1.21 dlls.
5.Now copy the 1.20e dlls into your warcraft 3 folder where they will overwrite your current(1.21) dlls.
6.Your warcraft will have changed to 1.20e now.
7.Every time you want to change to a version just copy the respective dlls into your main folder and overwrite the previous ones.
Enjoy!