Yeah I do; I've tried manually enabling that in the settings or leaving it at automatic, along with various different memory sizes, core/cpu counts, SCSI vs IDE

Yeah I do; I've tried manually enabling that in the settings or leaving it at automatic, along with various different memory sizes, core/cpu counts, SCSI vs IDE hard drive, also tried Windows 7 x64 as a base, and both 2008 and 2008 R2, all to no avail. VirtualBox it is then... Thanks anyway!