EViews.com

When performing a Wald test in Eviews 9, Eviews will not allow you to modify an initial restriction. Furthermore, it will place this coefficient restriction on ALL further estimations, including systems unrelated to where the Wald test was performed. HUGE bug.

A fix will appear in the next patch. I know that it's inconvenient, but for now, restarting EViews will clear the restriction. Our apologies.

Thanks for reporting this one.