Didn't have that prob here....
I'm on a WIN XP Pro platform. I had installed 2.6.0 Pro over 2.5.5 Pro, settings & prefs OK.

and now, I installed 2.6.1 Pro over 2.6.0 Pro... and again, settings OK.

Are you guys using the default program folders? I haven't tried 2.6x yet but I had to re-do my settings with every 2.5x PRO version. I installed the program in the default location but then use a 2nd drive for the download and shared folders.

Yup.... Using the default locations and folders.

I install to the default location (c:\program files\Limewire) but use a second hard drive for the default save locations (and incomplete folder).

I'm using an administrator account (so it shouldn't be a permissions issue). Pro version of LimeWire.

Installing 2.6.0 over 2.5.5 created a new LimeWire icon on my desktop. Installing 2.6.1 over 2.6.0 replaced the 2.6.0 icon with a 2.6.1 icon (i.e. didn't add yet another desktop icon).

Mark

Well, based on our unscientific survey of the 3 of us, it appears that there's an installer bug. Rutro used all default folders and had no problem, while Treatid and I changed the download and shared folders and lose our settings every time we upgrade.