SPoD Debugger crash

If I use SPoD debugger on large programs I get the following error:
Natural 6.3.5 Patchlevel 0000 haas encountered a problem and needs to close.
Error signature :
AppName: natural.exe AppVer: ModName: debugengine.dll
ModVer: Offset: 0000d99c
(I have the error file on my PC harddrive)

I only get this error on large programs and if the network is busy!

We use SPoD only for development (our systems run on complete 3270)

I also get from time to time that my SPoD session just drops (not in debug - but normal coding/run/check etc.)!!!

Anybody else got the same problems?