Workstation 5.5 and Server 1.0 use VT only if your processor is capable of 64bit VT... You can try contacting support asking for VT support on 32bit pieces as well. As you use Linux host, you can experiment with Vmx86_VTSupportedCPU() in the vmmon driver. Currently driver tests for VT64_* defines only. You can just try to change this function to always return TRUE - at worst your host will reboot on poweron, at best it will work in VT mode, and most probably there will be no change in the behavior

Does your motherboard BIOS support the VT functionality of your CPU? The BIOS needs to be able to turn on the VT support (much the same as BIOS's needed to understand HT before you could enable that).

RDPetruska -- Yes the BIOS supports VT and VT is enabled in the BIOS settings.

Peter_vm -- Running the linked app pops up a window that says "This host is capable of running a 64-bit guest operating system under this VMware product" (titlebar says "VMware 64-bit Compatibility Check Passed").

I answered this in an earlier post above (Intel Pentium D 920). It's not a Core Duo like the thread starter.

OK. So, what exactly is your problem then? Have you tried to create and power on a 64-bit guest?