Sorry to see you got the same problem 5O\'ClockCharlie. I had very frustrating times, as my boss didn't want me to upgrade.
With CS6 that problem is gone, although that won't help you much.
In all the years I've used Adobe, I found that when a computer in combination with Adobe causes a glitch, you're stuck with that.
It will never be repaired. The only solution is a new version (and hope for the best) or an other computer.
My machines can't use dynamic linking for instance.
And Speedgrade is unusable.
What strikes me as odd, is that newer versions of Adobe software sometimes have issues with functions that worked flawlessly in previous versions.
And how some very basic requests can take years, like field shifting in Encore.
Photoshop is one of the most stable working programs.
Pity the interface got changed so working with multiple documents and docking the menus is now very unhandy.
Speedgrade is least stable, then Encore, then After Effects and then Premiere.
CS6 as a whole is somewhat more stable compared to older versions.
I would like to be able to fly in an engineer to fix my configuration.
That is not possible for Adobe users. I would be glad to pay for that.