Yesterday I noticed my 2000 disco II (118,000k) making a squeak noise when driving, It became very apparent when I stop at a traffic light and accelerated from a stop position. I pulled of to the side of the road to examine further and noticed some the belts where sitting off center on the pullies. Are the pullies bent or worn out? has anybody experience this problem? Any input would be helpful I'm not a mechanic. Thank you