LabVIEW crashes when I paste to the diagram

[David P L]

When I paste a part of one diagram to another, Labview 7 crashes with
"The thread 'Win32 Thread' (0x910) has exited with code 0 (0x0).
Unhandled exception at 0x0084d46e in LabVIEW.exe: 0xC0000005: Access
violation reading location 0x8168592c."