Finally gotten to the bottom of this problem... don't snmp-monitor any PCs / Servers. Restarting the service was not a good enough solution for us... and reinstalls of any version all resulted in the memory leak resurfacing as soon as I pulled our map in (ie: restored our previous data directory). I...

@sweetdude - nope, no external services etc... just using inbuilt probes - ping usually, and snmp on all links and switches. @adamd292 - yep that's my usual recovery procedure. Not gone that far yet - figured better to try and work out why it's happening in case it's an issue that needs plugging by ...

Here's our map... we have it permanently displayed on a large plasma screen in the corner of our support office...

I'm getting massive memory leakage in all versions I've tried (which is 3.1 onwards... none from earlier). Have tried running as a service, and with remote and web servers disabled - seems to make very little difference. We don't use AutoDiscover. Now we're at a loss - we've put 1Gb of ram in the ma...