Are you trying to install MT4 platform on linux (Ubuntu) and your installation progress stops when a new dialog window opens , asking : “Please specify the proxy server options”.
We at the Zoo have found the solution for that.
1.Please click on the below button and download MT4 for Linux folder.Download
2.Open the file and extract it to the location of your choice (can be desktop)
3.Open the folder you saved and open terminal.exe using Wine