[Qgis-user] Quantum GIS, geoprocessing tools broken

[Alexis Jorgensen]

Hello, I am having trouble with quantum GIS on my computer.

-More specifically, it will no longer produce new shapefiles using the 
union geoprocessing tool. I can set it up, but when I press go the path 
name to the output shapefile vanishes and no shapefile is created. I 
don't know whether any other tool is effected, but I would not be 
surprised. No error message shows, the tool simply doesn't work
-In addition, the program has been running very slowly recently
-My operating system is windows 8
-I did not install the software, so I am not sure how it was done
-The problem occurred during regular use of the program, and has 
persisted for multiple days

Thank you for your time,