I have recently installed solidworks 2014 on a PC. I also have 2013 on the PC. I have an assemble creating in 2013 and it all works ok. When I open that assembly in 2014 it respondes very slowly. For instant when I click the middle mouse button itcould take 10 sec to get control and then the movement is also very slow. When editing a part this works ok. I have saved the assembly as 2014 format, I am not sure if all the parts are 2014 format would this slow it down. I have checked all the options and both 2013 and 2014 have the same otptions. I have enable large assembly mode and disabled it and it made no effect. Has anybody else seen anything like this or offer anyadvice.