is there any adjustment to the new mini z's hydros? today i about drove it into a ditch. as i was traveling down a slight down grade to mow along a ditch i pulled back on the right lever and nothing happened mower kept going straight. finally as i pulled the lever all the way back it finally turned. i also now have the same problem making left turns. its also tearing up yards since the inside wheeel isnt turning backwards. the mower is only 1 1/2 weeks old and has 8.2 hours. its going back to the dealer tommorrow since this is definately a safety issue.