hiya, i have the most annoying wiper problem, my wipers when set to go off every 5 seconds or how ever long it is dont go all the way up and down, they will stop while in the up postion and then on next cycle will stop when there down, so its only doing half the wipe its meant to, all continious settings will work ok unless i turn the wipers off when there at the top then they will stay there, i have to time it to turn them off so there at the bottom where they should be, but the wierd thing is it only happens at winter time when its cold, if i left it until summer again then the wipers would go back to normal, but then as soon as the winter, cold days and nights start drawing in then this prob;lem starts again, anybody got any idea what could be causing this to happen ? thanks