Additional info I've just noticed. /var/log/messages and /var/log/syslog are full of messages like the following:
glxinfo[13954]: segfault at 0 ip 0804ad91 sp bfc7e8f0 error 4 in glxinfo[8048000+5000]
Additional info I've just noticed. /var/log/messages and /var/log/syslog are full of messages like the following:
glxinfo[13954]: segfault at 0 ip 0804ad91 sp bfc7e8f0 error 4 in glxinfo[ 8048000+ 5000]