I just made a brief blog post recommending that After Effects CS4 and Premiere Pro CS4 users turn off the "Make text and other items larger or smaller" setting in Windows 7, since it causes some problems.
Please use this thread to let us know whether this solved a problem for you or whether there are any problems with this solution.
There isn't really an option to "turn off" the feature. Do you mean to say that it should be set to "Smaller - 100% (default)"?
Yes, leaving the setting at 100% turns the feature off.