Hi folks, I have following problem: when I make big load on my PC, my monitor starts blinking in XFree 4.0.2 (precompiled binaries from xfree86.org), and does not stop until reboot. It has been blinking on 4.0.0, so I upgraded to 4.0.1 and then to 4.0.2, and problem persists. I have first tried to replace VGA card with another one. It did not help. Then, I've tried to recompile kernel without support of APM and other problematic things - but it still persists. I've tried to underclock RAM and CPU. No solution. It still blinks. Because I have this problem also with XFree 3.3.x, I think that problem is in kernel. The problem does not seem to exist in Microsoft Windows 9x, so I think it is not hardware problem. Do you have any idea where the problem may be? I have AMD Athlon 650MHZ, 128mb ram (133mhz), Epox KX-7 with via chipset, RIVA TNT M64 with 32MB RAM. I'm using slackware-7.1 with kernel 2.2.18, patched with agpgart, stealth patch and openwall. Thank you very much Michal Medvecky - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/