Dimitrije wrote: > The command line: > colprof -v -D"R430_Migraf_04SwopUltra" -qu -bu -Zp -Tp -cmt -dpp -iD65 > -SSWOPM18.icm -OR430_Migraf_04SwopUltra.icm R430_Migraf_R3ps > > and also I often get the warning info : Reverse Cell Cache exausted, > processing in chunks No surprises there - you are using the ridiculous "-qu", so you run out of memory. On any well behaved device I can't see any difference between -qm and -qh. (And BTW -b is not needed if it is the same as -q). On a badly behaved device -qu may bring improvement, but it won't make it well behaved. My usual advice applies: First use -qm, then if you want, try -qh. If you can't see any improvement, stick to -qm. If you can, stick to -qh. Don't use -qu just because you want to "turn it up to 11", only use it if you can acually see some benefit. > I read Performance info, and set cache to 1.5 I have 8GB of memory and I > don't understand fully > what should I have to do with cache, so I can avoid this problem. Note that since it's a 32 bit exectutable, it can't use more than 4GB, and typically is limited to a whole lot less than that by ineficiencies in the OS. I was unable to reproduce this problem without the files you are using, so you really have to send me SWOPM18.icm and R430_Migraf_R3ps.ti3 if I am to investigate. Graeme Gill.