Mick_P_: Doesn't seem like much time to me, if it even is. I even deleted the install file, so installation would take even longer now. It seemed like it took an hour or more.
You started this thread on September 10th. It is now 8 days later. A re-install would not have taken 8 days. In fact, if the installation of Deus Ex took an hour or more then there is probably something wrong with your machine. Or are you including the download time?
As for re-downloading, it is only 431MB.
Mick_P_: I assumed users bothering to offer support would know where the pertinent INI files and registry keys are located.
As long as you've not installed into a protected folder (applicable on Vista and later) such as Program Files then the main ini files will be in \Deus Ex\System\. Look for deusex.ini and user.ini. Not sure you'll find anything of use in them though.
Mick_P_: If someone needs support, telling them to reinstall is a waste of your time. Because these simple suggestions are already on the game's support page.
Yet you've told us that you've not even bothered to do this.
Mick_P_: If posters gave helpful suggestions instead of clogging a support thread with non actionable information ...
A re-install is not non-actionable. Also, comments like this, basically accusing people here of being unhelpful (and jimnms even went to the trouble of digging out his copy to install it and move it to try and replicate your issue), are not going to make anyone want to help you any further. I know I won't be making any further comments in this thread.
Mick_P_: EDITED/PS to Gog.com folks: writing your post in a separate window is a real turnoff. Not to mention the Recent Windows restore function is now clogged with countless GoG forum forms.
If you don't like it, don't use it. Nobody is making you.
All you've done is criticise GOG - GOG need a better launcher, GOG need better support as re-installing is a waste of time, GOG forums are crappy - and now the GOG forum users by saying we've been unhelpful.
You haven't even read GOG's terms and conditions being as at one point you mentioned refund, but as these games are DRM free, once you've downloaded them there is no refund as you can copy the installer however many times you want and to wherever you want. You'd know this if you read the terms.
Anyway, I'm sure you have other things to do rather than getting this great game to work.