Downloaded second life, worked fine, uninstalled it, then i installed it again and doesnt work?

[Nesta Absinthe]

everytime i open up the game the interface is blank

[Abigail Longmeadow]

You probably did not do a clean install. There is more to it than just running the viewer's automatic un-installer. You have to manually delete all the settings files and folders and cache.

Here is the Second Life Knowledge Base article about it:

https://community.secondlife.com/t5/English-Knowledge-Base/How-to-uninstall-and-reinstall-Second-Life/ta-p/1375231

And here is the Firestorm article about it (this refers to the Firestorm viewer, a Second Life compatible 3rd party viewer):

http://wiki.phoenixviewer.com/fs_update_viewer