  We perform a discrete wavelet analysis of the COBE-DMR 4yr sky maps and find
a significant scale-scale correlation on angular scales from about 11 to 22
degrees, only in the DMR face centered on the North Galactic Pole. This
non-Gaussian signature does not arise either from the known foregrounds or the
correlated noise maps, nor is it consistent with upper limits on the residual
systematic errors in the DMR maps. Either the scale-scale correlations are
caused by an unknown foreground contaminate or systematic errors on angular
scales as large as 22 degrees, or the standard inflation plus cold dark matter
paradigm is ruled out at the $> 99%$ confidence level.
