Keyboard layout switching problem

[Dmitrij Ilchenko]

Hi.
I can't figure out how to solve the following problem:
I can't switch through keyboard layouts using left
ctrl+shift/alt+shift pair of keys, though the right keys work fine.
I've tried configuring xorg manually, setting grp:ctrl_shift_toggle
option. I want to have 3 layouts installed and want to switch through
them like on windows.
I can't tell exactly, byt it seems that the problem appears after i
run a keyboard indication applet in Gnome.
Using Edgy, 6.10.
Does anyone has the same problem or has ideas, how to solve this or at
least which way to go?
P.S. I tried different display managers (gdm/kdm), different desktop
environments (gnome/kde/xfce) - stil no luck.