Download winetricks by running the following code in terminal :-
Now we need to install some winetricks packages to get Impulse running properly. Run the code below in a Terminal :-
sh winetricks dotnet20 gdiplus
Note that the impulse installer will appear to crash, but just dismiss the error and the installation will continue as normal.
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by Tim Gilbert on Sunday November 4th 2012, 20:47
Impulse is now "GameStop App." The app installs ok after running winetricks dotnet20 gdiplus per the above comments. However, the client won't log in - it prompts for a username and password, but then spins for a while and produces an error message:
GameStop has encountered an unexpected problem and can't continue
The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
Googling around about this error message it looks like it has to do with certificate chain validation.
Streamlined install instructions
by Myk Taylor on Thursday November 11th 2010, 19:59
winetricks dotnet20 gdiplus
is required to work. The current install instructions notably omit gdiplus, which as Javier Kohen notes will cause Impulse to crash when you attempt to log in to your existing account.
Note also that the impulse installer will appear to crash, but just dismiss the error and the installation will continue as normal.