<user@hotmail.com> disconnected: Connection error... Write error

I have GIMP 2.2.13 and GTK 2.8.18 installed as non portable on a Win2K system.
Then I know the non portable Gaim is incompatible with GTK 2.8.x, as reported here:
http://gaim.sourceforge.net/win32/
GTK+ 2.8.x Unable to connect

So I downloaded the Portable Gaim 2.0.0beta3.1, that have GTK 2.6 statically linked.
I expanded the exe files, copied the directory in \Programs
When I tryied to start PortableGaim, it seems to work correctly, but just immediately after I recreate my MSN account, PortableGaim start to give me the same error that give me the normal Gaim:
" disconnected: Connection error... Write error"
related to GTK 2.8.x

After some try I understood that the problem happen when exist (or when is created) the file:
P:\Programs\GaimPortable\Data\settings\.gaim\accounts.xml

If I remove that file, PortableGaim ask me again to create the account.
But when I recreate the account, PortableGaim recreate that file, and the error come again.

Obviusly the error happen also if I copy my 'accounts.xml' (or all the .gaim directory) from my normal Gaim to PortableGaim.

How to have Gaim, and the last minor version GTK 2.8 on the same Win32 system ?