Saving received ringtone displays incorrect filename on Ericsson

When I save a received midi file from a dynamiclink I get
the filename correctly on a Nokia 6610. However, using an
Ericsson T610 I get "get.aspx" as default filname.
I use Service Indication, and the IndicationText is
correctly displayed on both phones.

Dymamiclink:

http://123.123.123.123/get.aspx?ID=f...5af4as4-a5faf4

Headers:
("Content-Disposition", "attachment;filename=test.mid);
("Content-Type,"audio/midi")

What am I missing?

Greetings from Norway
Rune
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