Litronics problem

[j.fro]

I've got a problem with the brights on my 1999 C4. The headlights are litronics. The low beams are fine, but when I hit the brights, the low beams turn off and all I get are the brights, and the pattern is terrible. On my 2000 Boxster ( also Litronics) when I hit the brights, the low beams stay on along with the brights and the lights look great.
Any ideas on getting both beams to stay on for the 996? FWIW, the C4 was originally sold in Canada, so it has a couple minor differences. Could that be it??