After I tried out several radeon options I found a better solution than deactivating Render Acceleration: forcing the card into PCI mode (by setting AGP mode to -1). Performance is much better, I can see no corrupted graphics at all & I have no problems with massive RAM & swap usage.
The performance is inferior to AGP mode 4x, 2x and 1x, but apart from that it works great.
After I tried out several radeon options I found a better solution than deactivating Render Acceleration: forcing the card into PCI mode (by setting AGP mode to -1). Performance is much better, I can see no corrupted graphics at all & I have no problems with massive RAM & swap usage.
The performance is inferior to AGP mode 4x, 2x and 1x, but apart from that it works great.