I have CS3 installed on my desktop and it works fine. I installed it on my laptop also. Premiere works just fine, but Encore doesn't. Thinking that the laptop just wasn't as powerful as the desktop, I bought a new laptop, which is much more powerful than the desktop. Encore won't work on the new laptop either, while Premiere still works fine.
These questions below may be for a different product... but the kind of information you need to supply is the same, for the products you use
More information needed for someone to help... please click below and provide the requested information
-PPro Information FAQ http://forums.adobe.com/message/4200840
>Encore won't work on the new laptop
What does that mean... does Encore not START, or does it start but then stop with an error message?
If you are running Encore CS3 on Windows, there are 2 things to try
PPro before CS5 NEEDS to be run in compatibility mode with Windows 7, which means right click the program icon and select WinXP compatibility mode from the popup
If you have Win7 64bit PRO or higher, try Microsoft's Virtual XP
This is only ONE example of using Virtual XP http://forums.adobe.com/thread/702693
Run as Administrator http://forums.adobe.com/thread/969395 (Encore AND PPro)