I have successfully added the ATtiny profile and drives to my IDE and managed to upload a program to two of them. A couple hours later the IDE can't find them after it gives the instruction to "plug in device now...". I've tried two additional modules and nothing works.
Do I need to go back and reload the digistump AVR info and the USB driver? I haven't resorted to that because everything appears to be working properly, right up to "Device search timed out".