Ok, I may have overlooked it in the forum before posting and not too sure if this is the section I should be putting this in but here we go.
I recently started a blog site for myself and have enabled registration on my site so that I can control who is posting comments. My question is, when someone registers as a member there seems to be a very very tight restriction to what can be used with a user name, e.g. no spaces or underscores. Does anybody know a way to enable the use of at least underscores and dashes???