Arduino won't open because it "can't create sketchpad " after installing IDE

When the Ardolino software first tries to open it immediately gives a message saying "you forgot your sketchpad" "can't create sketchpad" and promptly closes

Any hints?

Installed the current version 1.65 and same thing happened with 1.64

Sony Vaio running Windows 7, Centrino duo processor

did you extract the software with the note pad?

Normal download from website It installed normally on one computer but the last lines of the install opening sketch folder don't seem to be active so the folder doesn't install then the program won't open

A bunch of people have had IDE 1.6.x problems, including IDE crashes and bizarre compile errors, when they have an old 1.5.x installation. Those problems seem to be caused by out-of-date executables that the new IDE saves outside the IDE installation directory. In such cases it appears that the fix is to delete or rename the old "Arduino15" directory and re-install 1.6.x.

On Mac OS X: /Users/username/Library/Arduino15

On Windows: C:\Users\username\AppData\Roaming\Arduino15