Slackware 10.2 - a problem with keyboard layouts
 

Specifically, I need to enable THREE keyboard layouts in X and switch between them using keyboard shortcut "alt+shift". When I enable just two keyboard layouts like this:

Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us,ru"
Option "XkbVariant" ",winkeys"
Option "XkbOptions" "grp:alt_shift_toggle"
EndSection

Everything works just fine. But then I add a third layout (btw, precisely following the example given in xkb documentation):

Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us,ru,ua"
Option "XkbVariant" ",winkeys,winkeys"
Option "XkbOptions" "grp:alt_shift_toggle"
EndSection

And the result is: I can't switch layouts with keyboard shortcut anymore.

Now, I'd be grateful if anyone could point out what I am doing wrong here.

did you try it with just ONE winkeys like you see above??

Nope, didn't occur to me. I'll try this and report if it works. Thanks :)