FX560 Display problems...

I am running SW2009 sp1 with an FX560 and dual monitors.

I have a few problems:-

The first is sketches failing to refresh. The usual chaos ensueswith all kinds of crazy lines all over the place. The only way to"grab" the sketch to dimension it is to wave the cursor around likea mad man until the line shows in red and can be selected. Oncedimensioned the line dissappears again.

Secondly, If I run parts or assemblies in anything other thanSoftware GL mode a similar problem occurs in that upon rotating themodel the screen image remains the same. I then go into mad modeagain with the cursor and can select a surface once highlighted inred again. The screen however stays the same. this can sometimes besolved by using Window followed by New Window but this only resultsin delaying the problem a few seconds longer until the New Windowdoes the same.

Thirdly and not surprisingly, I can't go anywhere near Real View asyou would expect.

I am on driver 6.14.11.6265, having tried 6.14.11.7551 which madethings even worse (incidently, why are there two recommendeddrivers on the SW web site?)

My system is an Intel Quad core duo with 4GB ram.

I experienced none of these problems with any previous releases ofSolidWorks and am at a loss as to how to resolve this.

Can anyone help me with system settings etc which I need to change?

SolidworksAdministration