A gain or input volume controller and method includes a modified R2R ladder network having a number of R2R branches, switches coupled respectively to the R2R branches, and a switch controller for respectively controlling the switches to control and provide an overall gain value for a signal. Unlike the prior art, the present invention checks for a plurality of decompression program code routines that may be present at a remote computer. The exchanged information can be used to adjust a given page buffer to compensate for effects in directly adjacent data lines that are being operated at the same time.