I noticed a popping noise on my newly installed CM7 Ginggerbread rom when my Archos 101. I know this is a known issue but I was wondering if there is a fix for it?

I just installed Bull CM7 Gingerbread to my Gen8 Archose. I keep hearing a clicking noise when it's in sleep mode. Is this a known problem with this Rom? Is there a way to fix it? Just curious.