Since my last post, I updated the machine to (I think) 6.20. The problem seemed to be cured, but the machine itself died (motherboard failure) soon after, and since the problem was intermittent, I could not be certain of the cure.
I'm now running 7.20 as a dual boot machine (2 seperate hard drives) on my "main" PC with no problems, so I probably won't be able to make any useful contributions to this thread.
Since my last post, I updated the machine to (I think) 6.20. The problem seemed to be cured, but the machine itself died (motherboard failure) soon after, and since the problem was intermittent, I could not be certain of the cure.
I'm now running 7.20 as a dual boot machine (2 seperate hard drives) on my "main" PC with no problems, so I probably won't be able to make any useful contributions to this thread.
Cheers,
JohnP