Kirk, thanks for the reply. OK, I had been using 1024 MB and after your reply I changed it to 512 MB. I used PM all afternoon doing the same things that caused my earlier difficulties and only had one incident, so I guess your suggestions work, at least to prevent multiple PM crashes.
Re the Caching Dialog box, there is a box called "Disk Cache Size". What Value should I put her to increase performance, I am currently using 2000MB.
DJJC
[attachment deleted by admin]