Iago Laz - thank you so much, your solution worked for me:
sudo ppa-purge ppa:matthaeus123/mrw-gimp-svn
Also - for good measure, I also used the above method to remove the Nvidia Vdpau PPA repository.
Iago Laz - thank you so much, your solution worked for me:
sudo ppa-purge ppa:matthaeus12 3/mrw-gimp- svn
Also - for good measure, I also used the above method to remove the Nvidia Vdpau PPA repository.