Hi everyone, I am a Acronis TrueImage user since version 9. Now I've upgraded to v11 (build #8064). Since I've updated my PC a few weeks ago there's a real problem with creating backups from boot-CD. Sometimes TrueImage crashed during creating the image file. In every case the image was corrupt when verifying it. Then I tried old version 9 (in safe mode) --> same problem. Memtest86+ and other test procedures (running Prime95 for dozens of hours) were finished succesfully. System: Intel E6750 Gigabyte P35-DS3R 2x 2 GB g.skill DDR2-800 several HDs Yesterday I had an idea because of a screen report I could watch for a short time before the PC resetted (something like "unknown memory adress"): with F11 I added 'mem=2048M' to kernel start parameters and now: IT WORKS. I can reproduce it: even a Image created with '2048M' shows as "corrupt" when verifying it running without '2048M', but works when verifying it running with '2048M'. Is this a known problem? My presumption: due to my hardware (7950 GX2, Soundblaster X-Fi platinum, RAID5-function of chipset enabled) there seems to be left only 3 GB RAM for 32bit operating systems (at least WinXP pro reports that). Could it be possible that the Linux kernel does not calculate correctly the amount of the RAM?