KDE Accessibility Tool switches keyboard layout

Hi, I am running openSUSE 11.0 (X86-64) with KDE 3.5.9.
When I hit the shift key many times or hold it for long, the KDE Accessibility Tool shows up. Sometimes, this happens unintentionally and I close it by clicking cancel. Interestingly enough, that changes the keyboard layout from german to US! My KDE Keyboard Tool icon does not reflect this, but it is changed. Using the keyboard tool, I can then change it back. BUT then, some key combinations do not work any more (e.g. involving the Alt Gr key).
All these steps are 100% reproducible.
Has anybody seen this or knows a possible remedy?