rui wrote: > Hi, Dear All, > > I have a mac 10.4 with 4GB memory, I thought it should be pretty fast. > However when I run coot, it's kind of slow. Even when I push the > space key to go to next residue, I can feel it is really walking to > the next residue. Is this normal or something maybe not set up > correct? I wonder how feasible it is to do modeling in laptop. Sorry > for the dumb question, but I just want to get a sense how fast it > should be, so that I can have things fixed. About -> On Line Docs -> "Slow" -> Search ...works for me. Otherwise: http://www.biop.ox.ac.uk/coot/doc/chapters/user-manual_8.html#SEC199 Or search the coot mailing list archive yourself. Here: https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0912&L=COOT&D=0&P=42829 https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0912&L=COOT&P=R4009 https://www.jiscmail.ac.uk/cgi-bin/webadmin?S2=COOT&q=slow&s=&f=&a=&b= Or search majorgroove yourself: http://www.majorgroove.org/questions/99/why-has-my-coot-gone-slow Or Edit -> Preferences -> Smooth Recentering -> Number of Steps -> 10 Also the Coot Spin Test page may be of interest http://www.biop.ox.ac.uk/coot/spin-test.html Paul.