Hi Swinks, this is a general change. Editing is available in the first five minutes, then disables. This was done as recently a former member edited quite a number of posts by deleting their content, and to avoid issues in future like this (wasted a lot of our time cleaning up the mess), the time limit was re-enabled. It was a planned part of the V2 update that is coming soon in any event.
Sorry if this is inconvenient, but sometimes we have to set things up with the lowest common denominator in mind unfortunately.
Any member who wants a post edited, deleted please feel free to PM me or Stangeways the topic link and edited text, we can always make the change. For the most part, a correction in a later post is better anyway as it avoids some inconsistencies where members might correct an earlier post rather than posting the correction.