It will be rubber banding Paul, check the Alt and the Az percentages and see what they are; from memory they should be approx 10-15%, Weasners site will give you the correct percentages.
As for the slow slewing finish I think you'll find High Precision is turned on under Setup turn it off, it's a pain the posterier.
If none of this works just whistle Paul.
http://www.weasner.com/etx/menu.html