One is a lenovo think pad using a microsoft wireless mouse and keyboard and the other is a lenovo using std lenovo mouse software. Both machines are new purchased specifically to run Solidworks 13.
The mouse often refuses to move or position the model. Instead, the wheel can and often does go into a weird magnify mode where the magnified area is a rectangle about 2" wide by 1" tall in some random position on the screeen (or maybe off it). Somtimes hitting g a couple of times gets rid of it and other times it will work by the 4rth to 10th middle wheel press.
It is a real pain in the ass and older versions of Solidworks did not do this.
I have checked with our local retailer who tried whatever they could think of to fix it without sucess so they recomended I post here.