I'm running 4.0.2 and unstable on my Thinkpad i1452, and I'm pretty unhappy.
The major problem: Often, when I use a Netscape window, my computer hangs. It might be while I drag the window, it might be while I click on a text box, ... Sometimes it's after 5 minutes of use, sometimes after 5 hours. But it always seems to be Netscape-related. The hang is complete -- no network, ny SysRq, nada. In the 3 years I've used 3.3.6, X has been totally stable. Furthermore, my computer seems to be stable if I don't run Netscape. What can I do to pursue this? The laptop has a NeoMagic MagicMedia 256AV graphics chip. Also, this is no big deal, but perhaps a clue: In GDM, when I iconify the window, the window disappears and the icon appears in the lower-right. But all this garbage appears to the left. A whole bunch of icon-width lines scattered across the screen. It looks like bad acceleration code -- somebody screwed up the rowbytes on the blit. Thanks for your attention! - Scott