gpg: protection algorithm 254 is not supported

[Dominik Schwald]

Hi,

i've got a small GnuPG Problem. using windows98 with gpg1.2.1-1 i've 
some problems with decrypting.

i've got 2 secret keys for 2 different email adresses. The older one has 
no problems in decrypting data, but when i try to decrypt anything, that 
was encrypted for the new key i get the following output:

C:\Programme\gnupg1.2.1-1>gpg -d test.asc
gpg: protection algorithm 254 is not supported
gpg: encrypted with 2048-bit ELG-E key, ID 2AB52944, created 2002-10-10
       "Dominik Schwald (nextbyte Software GmbH) <d.schwald@nextbyte.de>"
gpg: public key decryption failed: unknown cipher algorithm
gpg: decryption failed: secret key not available

Of course the secret Key IS avaliable and ultimatively trusted...

What is wrong here?

Regards, dominik

PS: Using GNU/Linux i don't have any problems with 2 secret keys...