I've installed the extension in my slimjet (beta 11) and the standalone program which then took to me to this page
http://www.eagleget.com/enable-eagleget ... le-chrome/(the bog standard help page really) but i followed the instuctions there and it works fine which points to a problem your end. It does point this out "Important Note: How to resolve Chrome’s Suspicious Extensions Disabled notification" on that link and it redirects here
http://www.ghacks.net/2014/02/14/resolv ... ification/ but i don't think that's the problem, i think it may be that the standalone product installs the extensions to any broswer it sees and recognises on a system which seems to be the case for you as you have said the extension was disabled (that's the reason you are getting that message telling you its already installed) now you said you renabled it but then it dissappeared , well it may have not uninstalled you should see a menu / pop up "remove from Slimjet" for proper removal.
I would look in your profile folder check and delete the folder if there that corresponds with the eagleget extension it will be the letters that the store show kaebhgioafceeldhgjmendlfhbfjefmo: so either type this in your address bar chrome://open_profile_folder which should open your user data folder then look for the extensions folder and delete the folder or through your computer its C:\Users\[REPLACE WITH LOGGED IN USER NAME]\AppData\Local\Slimjet\User Data\extensions then reinstall just the extension. If you're using the dragging and drop method make sure you have the developer mode ticked on the extensions page.
It might be you have a corrupt profile in slimjet or chrome and more so if you use google sync that may be causing the problem
Barring that you might need to completely remove eagleget from your computer and start a new.
