First of all, Sliderdock is a wonderful lanuch application
My operating system: Win7-64 SP2
While working in other applications, the Sliderdock rings change when I use the up and down arrow keys in that application. It seems to happen in any application.
Shortcut Keys set in Sliderdock:
Ctl+Left = rotate icons counter-clockwise
Ctl+Right = rotate icons clockwise
Ctl+Enter = launch an application
*No shortcut keys set for select previous or next ring