I had (quite happily) been using the 'Generate Attachment Match Table' in the 10.1 environment as part of the process to include attachments with some point data. For unknown reason(s) it seems to have just quit on me. The last number of times I've run the tool I just get an empty output warning along with error 000590 for an empty input or parameter of some sort. I've tried all sorts of different inputs and input locations with these same results. The last two times I tried running the process in ArcMap, the program crashed upon exiting(?). Production on this front at a stand-still I've come here to seek advise. What information would be most useful for troubleshooting this issue, and has anyone else discovered the same kind of problem?