Hey Myl - can you help me understand this a bit more please?
When I install CS5 I believe I can keep CS4 on the same machine - CS5 won't write over the CS4 installation.
But are you saying I won't be able to open an AE CS4 .aep file in AE CS5? Is there no ability to update it on the fly, like in Flash? (coulda sworn my CS2 .aep files opened okay in CS4...maybe not)
Thank you for your kind attention.
You can open CS4 files in CS5, but you cannot go back from CS5 to CS4 with these files. Install is unrelated - multiple versions can happily coexist.
Oh okay, right - you can't "go backwards" so to speak - thanks Myl - I appreciate it.