I have the A7V333 actually with XP 2100+.
One of the tool that i really like is the software that's on the board CD for "flashing" the board.
Since i'm using this board the only problem that i had was with the RAID feature which i don't use anymore.
I upgrade my drivers when needed, flash the board using the tool and never had any problems related to any of my hardware.
With Windows XP (Home or Pro) i make sure that i use "msconfig" to remove any programs from the background, delete everything in the "Prefetch" folders at least once a month and if it's freezes when you're on the web you can try Ad Aware, SpyBot and other software for spywares.
I also use Window Washer, HD Valet, Registry First Aid and RegScrubXP to keep everything clean.
You can also try to reset TCP/IP and for more info about it this is the Microsoft web page for it:
http://support.microsoft.com/default...NoWebContent=1
Hope this help.