before I splash out on getting the parallels 4 upgrade, do I first have to fully update my parallels 3? because it won't update it.
Hello Mcmaiering, You can upgrade directly to Parallels Desktop 4.0 even from any early build of Parallels Desktop 3.0. You can even upgrade to 4.0 from Parallels Desktop 2.0. All you have to do now is just to upgrade directly to Parallels Desktop 4.0. This should fix the issue.