Poking around I found what is causing the graphical stutters and crashes. Objectdock uses window's "Aero Peek" for thumbnail snap shots of running processes. When I disable that feature dexpot doesn't stutter or crash anymore. For now the workaround is to disable Aero Peek, but I would still like to have the thumbnail preview appear in objectdock.

I am assuming dexpot uses Aero peek to also grab snapshots and it some how conflicts with objectdock?

Anyone using Objectdock with Dexpot Window catalog without graphical stutters?

Seems like Objectdock tries to take a screenshot of application/windows for dock previews and it seems to cause dexpot window catalog to stutter when activated. In some cases it causes Windows 7 to completely freeze.

When i disable showing running windows in objectdock everything works smoothly with dexpot windows catalog.