sticking gearlever

Forum: 

Hi, I have a terios sport 2003 switchable four wheel drive, every now and then when you change down usually from 5th gear the gear lever sticks and you cannot move it, after messing about for a while it becomes free with a little persuasion and the problem dissappears for a while then it happens again it can be weeks or months, unfortunately i cannot use the car for any distance travel as you dont know when it will happen and if at a junction you cannot go anywhere, has anyone any idea what this could be or has anyone had the same thing happen, I would be most grateful for any assistance you may be able to offer or any advice you can provide to try and shed some light on this problem. Thanks up front to anyone who may be able to help.