Windows Vista?

[JkWhoSaysNi]

Hello.

I'm using Windows Vista and have problems with Graal. Any animated tiles (Flowers are the usual cause) cause the surrounding tiles to flash strangely. Sometimes displaying other parts of the level. This happens on all servers so it's not a server issue. (See screenshot)

Weirdly, it doesn't happen on every animated flower but just some.

I've tried deleting the graal directory and reinstalling it.

System specs:
AMD XP2800+ (Barton core)
1gb DDR RAM
ATI Radeon 9800 Pro


Thanks for any help