There have been no problems running Win 7 Beta as the fourth OS on my system.
However, I discovered that Partition Magic cannot resize or move the Partition containing Win 7 Beta.
Also: Drive Image seems to successfully make an image of the Win 7 partition, but cannot restore it.
Is there something different about Win 7 partitions?
A side issue: I noticed Partition Manager 9.0 by Paragon, which claims to be the successor to Partition Magic 8.0 Since PM 8.0 has not been updated by Norton for several years, this might be so.
Any info relating to Partition Manager by Paragon?