Assuming this is what you have: typedef std::vector< _PACKETS > PacketList; std::vector< PacketList > _PacketLists; then this is probably what you want: for(std::vector< PacketList >::iterator listIt = _PacketLists.begin(); listIt != _PacketLists.end(); ++listIt) { PacketList& packetList = *listIt; for(PacketList::iterator packetIt = packetList.begin(); packetIt != packetList.end(); ++packetIt) { \_PACKETS& packets = \*packetIt; if(packets.seqNumber == seqNum) { packetList.erase(packetIt); return; } } } which simply means that you iterate over all elements of the outer vector, and for each inner vector, all elements is iterated until the one matching the seqNum criteria is found. It's then erased from that inner vector and the iteration is stopped. If you want to continue searching the remaining inner vectors (which I'd guess), then break instead of return. -- The Blog: Bits and Pieces

I found that GetAsyncKeyState does exactly what I was needing. Thanks guys!

Yea I'm sorry guys I should have been more descriptive. I've figured it out now, but basically all I was trying to do was log messages to an edit box control inside an mfc dialog based app in a CString. Now initially I was trying to do this from inside the server's functions, which I then realized all I needed was to either it global or pass it to each server's functions. Then I couldnt figure out why the strings weren't being added to the log window correctly, then I saw I needed to go inside the Dialog's Timer function where I handle my updating for my server and refresh the window every 60th of a second. All in all it was more of the fact I forgot where I needed to call what, exactly as you said. I'll remember to be more specific next time, but the help was much much appreciate and used! Jay Aigner http://wwww.jdaigner.com

I guess I don't fully understand. I've got my timer around my render function so it only renders if the time is more than a certain value. What exactly do you mean give the relative or absolute time to the "sine wave" function? Also what would I use to calculate my angular velocity and my movement vector? I think I'm starting to understand, thanks a lot for you help. j