I had the same problem with my postings being cut off. Eventually I started making sure that I had saved all that I had written at least to the clipboard, if not a separate word processing file. These problems occured both when posting from Netcruzer and Microsoft Explorer. For some reason it hasn't happened to me lately, using either Explorer or NetScape. I do notice that this box that we type in is different today, it now wraps words where it didn't before. I'm going on a bit here as a test to see if this whole message posts, or if the cut off problem has returned.
Decided to try a space in the writings to check that out too. Well, here goes a test post...