Our dryer is operating well--dries clothes properly, drum turning, etc. However, in the past couple of weeks, the drum makes a squeaking noise the first 45 seconds of the drying cycle (only when I haven't used the drying in a day or two, so it is completely cool.) Once the dryer heats up (2-5 minutes after the 45 second squeaking), the dryer sounds very loud. It is almost like I can hear the drum turning--but very loud.

Any thoughts??

Thanks!!