Travails on CS4 Trials

Question

Since I recently upgraded my HW , it seemed appropriate to try CS4 again.That turned out to be a real exercise!
First off, I get an 0x50 Stop message as I was beginning to configure Bridge, when I did a quick exit to see what I set up in PS. It never happened again so I went on. The Stop messages now changed to 0x08E. Careful inspection of the message ID'd NV4_disp.dll, the nVidia driver which I updated when I configured the new installation. CS3 Bridge has no problem with it, but CS4 does. Since it is a BSOD continually, I rolled back the driver. Now, Bridge runs ok, CS4 still runs OpenGL, but now CS$ appears not to really like that driver as I get erratic behavior like when moving the Window after engaging Float all Windows (I hate the default opening!) the image disappears unless I open something else or after moving it around for a while and clicking like mad, I get the image back and it is stable.
The second problem so far is the CS4 Bridge icon in the startup tray. If that is lit, I cannot open CS3 Bridge. Photoshop opens ok, but in order to open Bridge CS3, I have to exit CS4 Bridge first, which, incidentally is how I got the 0x08E stop! There is no way to permanently eliminate it from showing up because if you open CS4 Bridge at all, it sets the Startup icon no matter how Bridge  (and msconfig) is configured.
Since I also have BSOD when I installed CS3 (see http://forums.adobe.com/thread/540226?tstart=60), which also was traced to starup problems, I can only conclude that for my system outlined in the link, inadequacies have crept in for older programs running on newer platforms, and some older peripherals as well.
I have all the updates to CS4 and ACR.
On a positive note, CS4 Trial installed without a hitch and fast, around 5 minutes or so, which was nice to see. Also, my complaint with the brush disappearing in cerain color and values seems to have abated.
I guess I am stuck with CS3 for the forseeable future. That's not too bad, and hopefully, CS5 will cover all these bases nicely.

Answer 1

Been there Done that. Makes matters worse.
From what I can see, it seems to have to do with redraw, because as I decrease the acceleration, now it only redraws part of the image, tiling from top to bottom. Not all the tiles are present. If I drop to basic acceleration (one step above minimum) nothing redraws except box outlines.
On another front, I mentioned the Bridge Startup problems. I have been looking at that too, and neither will open if the other already is. So I went into the prefs on both, had only Bridge and Photoshop checked in CS3, and most checked in CS4. So I picked only Bridge and PS there also.
Problem went away.
But hold on! There's more! Now if Bridge 4 is running and minimized, opening CS3 Bridge maximizes CS4 and doesn't open.If CS3 is open, nothing happens trying CS4. It doesn't maximize a minimized CS3 either.
There's still more! Now enabling everything or most everything in CS4 Bridge does not restore the problem. I may consider the update again.
This all can have roots in the video I suppose, but since I am going to wait for CS5 and Win7 and a real computer update, I'll have to wait for then. By that time, advances on all fronts are to be expected; a new video card is in the budget, but I haven't the foggiest which one!
On second thought, I don't want BSOD again so forget the update to the video.