I have the same problem with Premiere Pro CS5. Did not try soundbooth. It just keeps creating new processes and when I exit premiere pro it does not close them. They stay working and keep using cpu as if it's still opened. I need to end ti manualy. Something is wrong. HELP!
Windows 7 64 bit ultimate
Dual Core 2.8 GHz
8 GB RAM
Graphic: Geforce 7600 GS / 256 MB
I see this issue posted in another thread. I smell a patch coming from Adobe for this problem.
I hope they'll be able to reproduce and fix it soon.
In another thread on this subject, a user indicated he did some maintenance work to his system, after which the process no longer continued to run. One of the things he did was upgrade the video driver to the latest release, 197.45. I did that this morning and problem solved. The release notes for this driver update indicate some changes to be more compatible with Premiere CS5. I also noticed that the CPU usage on startup and when the application is idling is less than before.
Similar was reported for PrElements 8. Two things took care of it: updated ATI and nVidia drivers, and then a patch to PrE 8.0.1, which changed the video driver interface (plus a few other tweaks). Glad that the updated video drivers are helping in your case.
Thanks for reporting and good luck,