If this is truly an accurate representation of how long it takes, then something is wrong. I can literally turn my FLEX-5000 on my desk on and 5 seconds later launch PowerSDR without a problem. The key is that PowerSDR shouldn't be started until windows recognizes that the FLEX-5000 is connected (can be heard if you have speakers on your PC ... otherwise, check for the "safely remove hardware" icon in the taskbar). This is not true in general. I have 2 devices connected to my PC (one built in and one PreSonus FireBox) along with the FLEX-5000 and it performs just fine. I can listen to MP3s while the radio is running on either of the other sound devices without a problem. This is truly a pain in the rear. However, you don't have to reboot the system to get the FLEX-5000 driver to recover. Simply pulling the FireWire cable and plugging it back in will reset the driver. Maybe I'm wrong, but I believe the radio is only specced above 1.8MHz. This is plenty of machine. I have a similar Pentium D 3.2GHz machine that will run 192kHz just fine. In fact, I have run 192kHz on a single core 3.0GHz machine without an issue. It sounds to me like you just haven't gotten some of the key answers to these questions. Have you posted similar questions on the Flex reflector? I suspect you'd get helpful answers to these in a short amount of time. You definitely shouldn't have to reboot to run the radio. If you are, then something is wrong.