If you look the AMD site, you'll find that the A7V266-E is an AMD recomended mobo, BUT IT READS CLEARLY REVISION 1.07.
So if I were you, I'll check that. In my partiticular case I have revision 1.02 and I experience the Infinite Loop some rare times, other than that, its a really fast mobo, but of course, I didn't test it with a XP chip, wicht is my next move. What I need is a fast and reliable mobo, with a 10% overclocking capability, don't need more, so I been trusting in ASUS from the last year, moved by coments in the Epox forum, wicht I used to visit regulary when I had my 7KXA slot A mobo. I had an A7V, A7V133 and A7V266-E, all of them were exelent mobos. They don't need monster PS nor expensive ultimate quality RAM as Epox ones.
A7V266-E (BIOS 1004b)
Athlon 1.2b @ 1301 (9.5x137Mhz)
Titan D5T cooler and 4 case coolers (just in case!)
512Mb DDR RAM (unbranded, 2x256Mb sticks)
Promise RAID 0 on 2 IBM Desktars 15Gb
CL Anihilator II (gForce 2 GTS 32Mb DDR)
CL Live! Platinium
Aopen Hq08 full tower case (300 What PS)
DVD and LITEON CDROM 52x on normal IDE channels
Win XP Pro OEM