http://www.zwsoft.com/forum/viewthread.php?tid=746 If you are using version 14 there is no need to read further. . . . . If you have not installed it you may want to check your hardware to see if it meets or exceeds our new system requirements. You can check out this web site to see which list you are on. <a target=new class=ftalternatingbarlinklarge href="http://en.wikipedia.org/wiki/SSE2">Check to see if your CPU supports SSE2 </a> Click on "CPUs supporting SSE2" SSE2, Streaming SIMD Extensions 2 used by DCM for the new Sketch constraints solver. Basically, the requirement is that you have a Pentium IV or better or an equivalent AMD processor. So far this has only affected 2 machines that I know of and one is my home laptop. LynchMikeVX 2009-04-06 12:59:47 http://www.zwsoft.com/forum/viewthread.php?tid=746&pid=3964 I never knew they made steam laptops....... ChrisW 2009-04-07 04:11:12