I downloaded the new Firewire driver and installed it without
incident. PowerSDR and the F5K worked fine. 

Ran the Flex Radio (driver) program and ran the compatibility scan.
Noted the SidSpeed comment. Thanks to what was posted here by Tim, I
found the HotFix page and with a little effort figured out how to
navigate the process. 

If you run Microsoft (MS) Windows XP and have upgraded to Service Pack
3, one of the "gifts" within SP3 is a change to the FireWire config
that (I presume) could slow the performance of the FireWire
connection. A simple fix is provided by Microsoft to restore the
original (higher speed) settings. Here's the step by step:

Visit the page Tim suggests:  
http://support.microsoft.com/?kbid=955408 
and click on the link near the top of the page where it says that the
Hotfix download available: 

Hotfix Download Available
View and request hotfix downloads

You will go to a web page where you will have to ACCEPT the AGREEMENT
FOR MICROSOFT SERVICES. You are then taken to the actual HotFix
REQUEST page. You must click on the check box to the left of the
HotFix name and provide an email address to which Microsoft will email
information on how to download the HotFix. Type in the characters that
are displayed in the graphic box and click "Request HotFix."

Within minutes you should receive an email with a LINK and a PASSWORD.
Instead of emailing the file to you, MS provides a link to a web page
where you can download the file. It's a small file. 

Download the file to a folder you can find easily. Once downloaded,
double click on the downloaded file. You will be warned to make sure
you have a good back up of your system setup. (If you aren't using
"System Restore" points, take the time to learn. They are very
valuable and can rescue you from a botched install. This is the
subject of another thread.)

Assuming you have a good backup, you can proceed. You will be asked
for the PASSWORD provided in the email. You can copy and paste if you
like rather than retype each of the several characters. The small
HotFix program runs for a few seconds and you're done. The computer
must be restarted for the change to be completed.

After rebooting, run the Flex Radio Driver program again. Do the
compatibility scan again and you should see that SidSpeed is set to
S400 and all will be well. 

Don't get in a hurry. Read the screens fully and the process goes
smoothly and quickly. Good luck.

73, 

Frank N. Haas KB4T
 



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