you don't need flash installed for Designer, this is definitely issue with the install, check if you have following folder on the Designer machine
%LINK_DIR%\bin\visuals
if yes, compare the contents with the working env, and copy the missing file
you don't need flash installed for Designer, this is definitely issue with the install, check if you have following folder on the Designer machine
%LINK_DIR%\bin\visuals
if yes, compare the contents with the working env, and copy the missing file