Anti-aliasing issue (ATI card)

[Karst]

Okay, so here's a weird issue I have.

On some reboots, my AA works perfectly fine as it should.
On other reboots, it turns itself off whenever I alt-tab.

I have forced AA on via my Catalyst™ Control Center. I alt-tab, and when I tab back in, it's off. Not the setting, just the AA itself. However it doesn't turn off if I toggle it when alt-tabbed (Use application settings on/off).

As in, I alt-tab, turn it on, tab in, it works. Alt-tab, turn it OFF, tab in, it also works - doesn't matter whether I turn it on or off, as long as I toggle it, it works.

For obvious reasons I don't really want to have to toggle it every time I alt-tab.
Does anyone else have this kind of issue?

Background info: card is a Radeon HD 5700 series. Nice card, but the software is a never-ending nightmare. And freelancer isn't the only game that has weird AA issues.

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