Can not edit macro

[mkdrep]

I have a number of existing macro's that I can not create. Also, I can not create any new macro's either.
I have attached a (.jpg) of an existing macro which I can not edit. I can get into design mode, but the info under "Arguments" column can not be edited. If I try to edit and/or anything in the Arguments column, all I get is an audible tone from my computer but I can't type anything.

Any suggestions?

 

[liddlem]

Is a dialogue window open (waiting for input or cancel) under the database?

 

[mkdrep]

Is a dialogue window open (waiting for input or cancel) under the database?

I don't think so, but how would I go about checking to see if one is or not? thanks