Hi Lindsay
I'll need to leave any response on the "ArcCatalog 9.3.1 fails to launch after ArcGIS Explorer 1500 installed" problem to my colleague who is in another city.
For the problem I have with "ArcGIS Explorer 1500 not switching from 3D to 2D on Vista SP2" that is *possibly* related to ArcGIS Desktop 9.3.1 being installed, I can provide the following information in response to your questions:
�?�Do you have any other ESRI products installed other than ArcGIS Desktop 9.3.1 (sp?) and ArcGIS Explorer 1500?
Only ESRI products installed on laptop with this problem are ArcGIS Explorer 1500, ArcGIS Desktop 9.3.1 (Build 3000; i.e. no service packs) and ArcInfo Workstation 9.2
�?�Do you have any ESRI or non-ESRI extensions installed?
There are no non-ESRI extensions installed.
All ESRI extensions are installed (I routinely do a Complete install) but only 3D & Spatial Analysts have been used on this laptop.
�?�If you've encountered issues on some systems but not others, what can you tell us about the differences between these systems?
Problem occurs on one of two similar systems i.e. both Vista SP2
Working laptop: 2GB RAM, NVIDIA Quadro FX 350M, DELL Precision M65, ArcGIS Desktop 10
Not Working laptop: 4GB RAM, ATI Mobility FireGL V5700 (with latest driver), Lenove ThinkPad W500, ArcGIS Desktop 9.3.1
It's not much to go on but I hope it helps.
- Graeme