Need your help.

[venim]

Well made a clean install of win xp pro (sp1 slipstreamed),
everything was working fine but when I use left alt + shift to change language (Greek language) it doesn't switch...
If I select to have Greek language on startup it works but when I use left alt + shift to switch to English nothing happens too.It sticks with Greek.
I have set the regional settings correctly for Greek (as usual).
Does anyone know sth?
Please

 

[big_gie]

kind of weird...

I always stick with the same (french canadian) keyboard so don't really know what could be wrong...