Have the same problem with linux-image-2.6.18-5-amd64 2.6.18.dfsg.1-13etch1 after upgrading (linux-image-2.6.18-4-amd64 work fine) Motherboard P5B Display adapter ATI RADEON X1600 Series Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz MemTotal 4031636 kB