Solidworks 2006 worked flawlessly until I updated to PDM 3.0. Now, at certain times (loading a document is a good one), the 3D display of the object being modelled with become garbaged -- obviously displaying parts of other graphics buffers, I've even seen bits of the Windows startup text in there. There is a workaround (hide and then show one of the components in order to force Solidworks to rebuild the 3D image it is displaying), but it is very annoying. Turning on and off DirectX has no effect. One data point: when I was first updating to PDM 3, at one point Windows went looking for a driver (maybe a video driver) and didn't find one. But other than Solidworks everything is working fine. Is there any way to ensure that all the proper drivers are loaded?