Changing Dimensions by Double Clicking feature and FREEZING

I am having a problem when I double click the feature and tryto change the dimensions in the 3d environment and the featurefreezing up. I can make the dimension change, but when I accept thechange it freezes. I can close the part and save but the screennever changes. If I close completely out of SolidWorks and comeback in, the part is updated to the new dimension.

Does anyone have any idea what could be causing this???? Pleasehelp. It is getting aggravating having to go into the sketch tochange everything.

BTW. I am on 2009 w/ Service Pack 3.0 Thanks in advance for anyhelp.

ESolidworksParts And Features