Hi there - ive just bought the program. Nice bit of kit! Can confirm again that it is emailed promptly after payment and works. Im having problems with compaction however. I am getting 'compact' crashdumped so cannot do PCI compaction. Existing due to signal SIGSEGV General protection fault at eip=0004e512 .... I have attached diag as zip as instructed. http://s000.tinyupload.com/index.php?file_id=84805997212124236678 Win 7 Clevo w251 Onboard intel 4000 Gt 635m >trying to attach GPU GTX770 with exp gdc Thanks very much - first time poster long time lurker. Apologies if I haven't found info already available but I have searched for a long time! pete101