Softplan mouse is jumpy not smooth

Can anyone tell me why the mouse acts stupid when Softplan is running. The mouse is erratic and doesn't track like it should. It's jumpy! Any suggestions would be appreciated. Thanks

 

Solution is on maker's site

You can follow this link and try the way explained in FAQs

http://www.softplan.com/FaqDrawManage.htm#a14

 

Thanks...but it didnt work

Thanks for the suggesstion...but that didnt work and now I am getting a double cursor. About ready to dump Parallels for Boot Camp..