Runtime error in AA2.0

I've seen other threads regarding the fixing of this problem, that you have to delete a certain .xml file or re-install the thing etc. I've done this and it's still screwed. Done it more than I care to remember to be honest. Every time I go into 'edit' mode for a waveform I get the R6025 runtime error and the program shuts down. This happens no matter what waveform I choose to edit. Can't tell ya how many times I've re-installed this thing and deleted that so called xml file which is apparently meant to cause the error. Someone please help me before the pc is beyond the point where I can panel beat it due to the kickings I have given it!

Cheers