This post may be familiar, a couple of years ago many people on this site went to great lengths to help me solve it, but getting back to trading again it still persists... 1.6 P4 with 500 MB of memory, two 18" lcd's driven by Matrox G450 Millennium, CPU usage frequently maxes and occasionally stays maxed, freezing everything. This when bringing up just 3 charts, with time and sales via MBTrading. Something I noticed for the first time today is that when the charts are minimized(taken off the screen completely) the CPU usage drops dramatically, from an average of maybe 50% to less than ten. This cannot be normal, and I'm wondering if it's possible the Matrox card could be having a problem of some kind. In the processes nothing but MBTrading and DTNIQ(charts) show, and I'm pretty sure nothing is running in the background that could be causing it(I did a clean re-install of XP two months ago to try to avoid this very problem). Thanks.