Weird issue with members and profiles mixing when they have similar names
 

I tried searching but came up with nothing, except for a bunch of stuff to the blogs.

Example:

Member 1 who is very active: 240-Kid
Member 2 not very active similar name: 240_Kid or 240 Kid

When you click on member's 1 profile, it points to the profile of the not so active member.

I can't get to the correct profile for 240-Kid as it points here http://www.240sxforums.com/forums/members/240-kid.html which is the profile for member 2 the not so active one.

Any ideas on how to fix this? It is happening to several members

Another example is user ~240~. He has 2,867 posts, but his profile points to the profile of user "240240240."

I have VbSeo installed and I'm wondering it that may be causing it. Thanks!