I am having an issue with my Frigidaire dishwasher. It doesn't seem to be going thru the drying cycle correctly. When I take the clean dishes out of it, all plastic/tupperware type dishes are still wet, but the other dishes (glass dishes, plates, glassware) are dry. Someone told me to replace the heating element in the bottom of the dishwasher, but it made no improvement. In the past, when the dishwasher was going thru the drying cycle, I could see steam coming from out the top front of the unit, but I no longer see that.

Any ideas?