Ubuntu 6.06 works fine on Athlon 64 X2 3800+ (AM2), ASUS M2N-E, ASUS EN7600GT for me...
-- Graphics and Mouse display problems on AMD Athlon64 X2 https://launchpad.net/bugs/47121 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs