This is a problem I had before some many months ago, but I have a rebuilt PC and the issue has returned and I forget how we resolved it.
Even on very lightweight files all functionality is perfectly fine but anytime undo is triggered either from menu, ctrl-z or toolbar icon my machine will freeze for 5-10 seconds. It makes no difference what the 'size' of the action being undone is, always a delay.
As I said, we sorted this before on Ss2, but a new machine and Ss3 the issue has returned.
Is there a size of undo buffer somewhere that will be causing this? It's baffling as it affects enormous models or simple near empty files.
Thanks
Please, this kind of question needs a lot more info for us to follow your installation.
The easiest way is to share a MSDEBUG.TXT created with Microstation command line argument "-debug:4"
Regards
Frank
since 1985: GIS, CAD, Engineering (Civil) Senior Consultant : [Autodesk Civil 3D , Esri ArcGIS, VertiGIS: in previous days : Bentley MS V4 - V8i, GeoGraphics, Bentley Map V8i, InRoads, HHK Geograf, IBr DAVID] : Dev: [C, C++, .NET, Java, SQL, FORTRAN, UML][direct quote by: http://en.wikipedia.org/wiki/Helmut_Schmidt]: "Wer Kritik übel nimmt, hat etwas zu verbergen"Wer Grammatik- und/oder Rechtschreibfehler findet, der darf sie behalten :-)