Problem - I cant turn Left?

Supertuxkart looks like a great game i just watched the intro movie and got a taste of its action... this i my first linux game download (i use ubuntu 12.4 LTS) My problem is that i cannot turn my kart to the left? i have tried to bind different keys with no sucess? i have trien to download the older version (i installed from the software center) howerver i get a message saying it is incompatable so i must download the ver 8. np thats what i did and it runs beautifually with the one exception that i cant turn left? any help would be apreciated beacause i cant pplay the game like this
thanks in advance. 

