I agree with Reg. Partially depends on the urgency of course, if there is a deadline, limitation period, trial/motion, etc. coming up...

Moreover, will it hurt you or your client any? Your client should have your allegiance over a colleague, and of course will be looking at you if the failure to obtain the underaking hurts the case.

I take it personally, if it's something within the other lawyer's control(as opposed to the other side's client); why should YOU be stressed out over this.

I have had to resort to advising counsel (who was not really opposing counsel, but for the estate, my client was a beneficiary) that my CLIENT wanted me to report him to the Law Society, because of very, very long delays in getting relatively simple things done. All I could report to my client was that I had called, mailed, faxed.,etc.,etc..... at one point I mailed the same fax marked "URGENT" for a week in a row, hoping it might embarass the guy a little in front of his staff and colleagues.

  "Written But Not Read"