Have used various builds of TI 8 since early 2005 through the current one. Except for several minor and resolved issues, it continues to work great. Upgraded to version 9 and experienced many of the problems posted on this forum. Finally received a refund, at build 2289, which still was not functioning to my satisfaction. Why is it that version 8 works and version 9 doesn't? I've read explanations concerning hardware, and other various software and being the culprit, but if this is the case why does one version work and the other one does not? Is it all of a sudden that this computer installation or hardware not meet the requirements for version 9 to perform well? I certainly have not seen anything to this when I reviewed the product and purchased it. Acronis what is the problem? After the amount of builds for version 9 surely you have an answer you wish to share?