Not really played around much with GNS 3 but seems like there is a common theme here.....It does not hold up to well when running any number of routers never mind the INE V5 Topology.
To all GNS3 users on here who complain about it's shortcomings, tell me how many Routers are you going to be configuring whilst using a GUI during the Lab? Not many I imagine.
I would strongly suggest that you all ditch it, along with Windows and run Dynamips/Dynagen under Ubuntu. It's well documented on Hacki and elsewhere that you will NOT get the same performance levels from using Dynamips under Windows as opposed to any Linux Distro
I intend on putting a guide together in the next week or so to demonstrate how to install Dynamips on a vanilla install of Ubuntu to help both myself and others which I may post here if interest dictates.
Installing Dynamips under Ubuntu really is not that difficult at all it's just that there is no one place that pulls it all together and it just works! Believe me i have looked.
Fire Extinguisher at the ready