I just love the line it must be your machine bla bla bla.
Say that about my machine, here is the specs.
Intel i7 4820K 3.7Ghz
Kingston HyperX 1600Mhz 32GB 9 9 9 24 "QUAD CHANNEL"
Asrock X79 Extreme6
(Raid 0) 2 x Kingston SV300S3 SSD on C600/X79 "SATA3"
Windows 7 64bit Ultimate
with Artisteer 4.1.x
problems changing anything takes time sometimes it will sit there for 20mins doing nothing "checked CPU Resources and CPU @ 2% with a Max of 8%"
the program is very buggy as it will often crash "have looked at your forums for solutions and fixed most of them but still unstable".
end result the program is unusable and that is really sad for a program that cost a fair chunk of money, especially for people that are just making a one off site, or for people who want a professional site for personal use or a non profit org.