In my experience CP2102 survives a suspend-resume cycle in Windows very well. -----Original Message----- > It also absolutely will not > survive a laptop suspend-resume cycle. I have a Bluetooth USB adapter that does this too. I have yet to come acros= s anything that really survives this. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .