I usually work with my LPM hidden on the Left side of my screen and hover over the window when i need to edit a layer or switch filters. every now and then when I'm working on a drawing the LPM will "freeze". At first it seems responsive, and i can click and interact with layers, however any changes i make do not appear on the drawing itself. then i try to change layer filters, for example from one XREF to another and the LPM appears to change filters but the list of layers does not update. The layer manager will stay in this broken sort of frozen state until I close the window and reopen it - then it works just fine. I can usually tell it is "frozen" when i have edited a drawing and brought in a new XREF and then go to change the layer filter and the XREF isn't even listed in the LPM because it is frozen and will not update. the refresh command in the upper right corner does not work either.
This problem seems to be random and doesn't consistently happen. I notice it occur when switching between drawings when i have multiple files open. i have to close and reopen the layer manager and then i can edit layers for a while. Sometimes the problem gets so bad that no matter how many times i close and reopen the manager it will not respond and then I need to restart my computer.
Windows 7. AutoCAD Civil 3d 2013. I use two monitors.
I'm looking for a more permanent fix to this problem because it can really hamper my drafting efficiency when acting up. I will attach a screen shot of what it looks like when it happens again. of course when i go to make this post it is working perfectly fine. XD
thank you
Steve