Memory leak? 9.04 64bit

[Rob Martin]

uname -a
Linux xxxxxx 2.6.28-14-generic #46-Ubuntu SMP Wed Jul 8 07:41:18 UTC 2009 x86_64 GNU/Linux
Clean install
uptime 19:35:51 up 1 day, 11:27, 2 users, load average: 0.34, 0.54, 0.69

 mono --version
Mono JIT compiler version 2.0.1 (tarball)
Copyright (C) 2002-2008 Novell, Inc and Contributors. www.mono-project.com
 TLS: __thread
 GC: Included Boehm (with typed GC)
 SIGSEGV: altstack
 Notifications: epoll
 Architecture: amd64
 Disabled: none

gnome-do 0.82 - docky
plugins enabled
Alias, Archive, CPU Monitor Docklet, Disk Mounter, Evolution, Files and Folders, Firefox, GNOME Session Management, GNOME Terminal, Google (Contacts/Docs/Maps/Search), Launchpad, Locate Files, Skype, SSH, System Services, Tomboy, Tracker Search, Vinagre, Virtualbox, Volume Control, Weather Docklet, Window Manager.

Current memory usage for gnome- do 411.5MB

Have regular screengrabs of Control Centre which show increasing memory footprint from reboot yesterday. went from 197.2MB at 1.15am to 412.7MB at time of writing. Disturbing thing is I was at work all day PC not in use. (have oodles of RAM, so this not an issue at moment, but for many others this footprint would render Do unusable)

Am not experiencing issue on 32bit.

Hope this helps.