Hi all, after an absence of 18 months or so, i decided to reinstall Parallels again. All went well, installed Vista, opened up Vista, ran well for two or three times. This morning I awoke the Mac from sleep and fired up Parallels. The initial screen stated up but on clicking the green start button, I just get the rainbow Mac circling ball, after some minutes I still had this and had to force a shut down. This was all repeated several times, to no avail! Mine is an older build, but it checked for an update on start up yesterday. Any thoughts before i trash it?