Version 651 crashes when I click on "map"

All of i sudden when I click on map ase crashes and I get this msg:--------"Description: Stopped workingProblem signature: Problem Event Name: CLR20r3 Problem Signature 01: ase_exec.exe Problem Signature 02: 12.0.0.651 Problem Signature 03: 4e98c730 Problem Signature 04: Microsoft.VisualBasic Problem Signature 05: 8.0.0.0 Problem Signature 06: 4ca2d138 Problem Signature 07: 79a Problem Signature 08: 22 Problem Signature 09: System.ArgumentNullException OS Version: 6.1.7601.2.1.0.768.3 Locale ID: 1033Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt-----------Any help appreciated.Vic